I think Miller is the most overrated player history, that said, he is an excellent player to pair with Giannis.
Now that is strange to me. Miller was a genuinely elite scorer who powered a decade of strong Pacer offences, his numbers were suppressed by the incredibly slow pace of the game when he peaked in the mid-90s and his scoring was additive in a way that others cannot replicate - Miller doesn't need the ball to drop his nightly "27 points" (that's his peak playoff scoring rate adjusted for pace) on sky-high efficiency against the toughest of defences.
Reggie was absolutely an elite shooter (one of the best ever), but he was a poor defender, didn't rebound, didn't pass well, wasn't a great ballhandler, etc. Even with a slower pace he only hit 23 ppg once in his career (his 3rd year). His FTr was good, but not great. He was basically a catch and shoot player. He made the 3rd Team All NBA 3 times in his career, received MVP votes just twice (13th and 16th), made just 5 All Star games, etc. His contemporaries knew what he was, yet if you talk to people today, they make it seem like he was this monster only slightly worse than Jordan. So that is what I mean when I say he is the most overrated player ever.
Hyperbole much? Miller was a feisty man defender who admittedly was a mixed bag as a team defender, but this is hardly worse than say Drexler on that end of the floor. He wasn't a good passer or ballhandler, but his passing was good enough to find openings in opposing defences and his off-ball creation made up for his limitations a bit in that regard: his shooting gravity would pull away extra defenders and create openings for his teammates. His "23 ppg" is impressive because it wasn't far off from the scoring rate of players like Drexler once adjusted for pace - his scoring per 100 possessions actually hovered around 30 points for most of his prime, Drexler peaked slightly higher but on significantly lower efficiency. And this isn't even accounting for Reggie's playoff improvement that holds true for his entire career: he peaked at 35-37 points per 100 in his '94 and '95 conference final runs, Drexler peaked at 33 in '92 on much lower efficiency. Miller wasn't Jordan, but he was one of the best non-Jordan SGs in that era and played forever.
Award voters had no idea of who he was, his contemporaries (Isiah Thomas and other former players on the show Open Court have spoken about him being a franchise player for Indiana who was underrated) did - he should've been an All-NBA mainstay, but was consistently snubbed by the media because they only looked at his raw slash line and FG%, much like what you're doing now.
not what I'm doing. I watched his games pretty consistently when he was playing. He was definitely a big moment player, but he wasn't nearly as good as you make him out to be. He was a bad defender. He tried, but he wasn't any good. He was an awful rebounder and a poor passer. He didn't handle the ball well at all. He was an elite shooter from everywhere on the floor, but that is about it. What makes guys like Clyde better players is he was a much better all around player. Clyde rebounded quite well, was a pretty good passer, etc. He wasn't just a scorer/shooter and that is all Miller was. I mean Clyde had several seasons where his rpg, apg, spg, and bpg eclipsed Reggie's career best per 100 possessions. Reggie was the ultimate catch and shoot player and is a great fit next to Giannis but he was no where near the player of guys like Clyde.
Then I'm not quite sure what were you watching. His defence was definitely not bad, poor defenders can't play pesky man defence and decent team defence. His rebounding wasn't great, but it wasn't poor either - his defensive rebounding rates were middle of the pack among guards in his time. His handle was below average, but it didn't matter a lot when he was scoring in bunches at insane efficiency with some creation in a few dribbles at most. He wasn't just an elite shooter, his foul drawing and off-ball movement to take advantage of the gravity his shooting ability created were elite as well and it resulted in a scoring dynamo who didn't need the ball like other offensive stars to do his thing, and defenders couldn't really slow him down (those playoff jumps were a result of him ramping up his aggression in the playoffs when his teams needed extra punch offensively against elite defences because everything else just dries up, and he delivered every postseason throughout his prime).
Clyde being better at rebounding and passing as well as stocks certainly gives him a bit of extra value compared to Reggie in those things, but it doesn't move the needle much in terms of overall impact when the bulk of their value came from offence. Reggie's off-ball creation helps reduce the gap between them in terms of creating for others while Reggie separates himself from Drexler in scoring volume and efficiency, as well as the fact that his off-ball offence fits incredibly well next to on-ball talent while there will be diminishing returns for Drexler. Really don't see either of them being clearly better than the other tbh, just because Miller was constantly snubbed by the media in his time or his game not fitting in with your preconceived notion of what constitutes a superstar doesn't make him notably worse than Drexler.