There are really only two categories I can see in which Lebron has beaten Bird for his career and they are PPG (+12%) and Free Throw Rate (+100%).
Bird on the other hand has beat Lebron in rebounding (+40%), three point percentage (+3.5%) and FT% (+14%).
So since Bird has won three categories to Lebron's one, I would give Bird the winner of the "tangibles / stats" category.
As far as intangibles go, there is no competition. Bird was tougher, had higher basketball IQ (IMO), was more clutch, was a better leader, and was an absolute master of the mental game (i.e. taking opponents mind out of their game and letting them beat themselves).
There are going to be valid arguments to be made in both directions, but here is the thing that seals the deal to me - Bird did EVERYTHING well. He had no weakness in his game. He could score from anywhere on the court, he could rebound at an elite level, he could pass at an elite level, he could defend at an elite level (and did, consistently), he had leadership, he had toughness, and he is one of the greatest pure shooters to ever live
Lebron is great scorer but isn't as skilled a scorer - he's merely above average (rather than great) as a shooter and rebounder, he lacks toughness and leadership, and his defensive effort is too inconsistent.
If I'm building a team today with the choice of 30 year old bird or 30 year old Lebron (assuming both healthy) I'll take bird without a moment hesitation.
What about assists? What about TS% what about PER? When you just pick and choose categories you can get whatever result you want.
LeBron gets a few more assists since he's much more ball dominant than Bird was but Larry was a significantly better passer than James and had much better court vision.
except you can't really say that. Their AST% aren't close (James is basically a full 10% better in his career and Bird's two highest seasons only were better than James' rookie year) and that is with Larry having much better teammates for the majority of his career. And it isn't like either one played with a dominant passing PG, as both often led their teams in assists.
Bird was a better rebounder (both in totals and rates), but that is about it (Bird was a better outside and foul shooter as well, but given the volume of shots difference, James actually has a higher TS% and PPS making him overall the more efficient scorer in addition to just scoring more in general). I get we are Celtics fans and Bird is (and should be) king here, but the real SF king is in fact Lebron James.
The higher AST% is also loosely correlated to LeBron's higher USG% and overall ball dominance. He will have the opportunity to create more chances for assists.
Kobe's career USG% is right around James' but his AST% is right around Bird's. Melo's career USG% is right around James, but his AST% is about half of James' and 10% lower than Bird's. Steve Nash's USG% is lower than Bird's, but his AST% nearly doubles Bird. USG% and AST% aren't really correlated at all. They quite simply measure different things. I mean John Stockton had a career AST% of 50.2, but his USG% was just 18.9.
He's talking about James being much more ball dominant than Bird, and pointing to usg as a sign of that. It's also worth pointing out that James was generally surrounded by spot-up shooters, so his passes (much more than Bird's) consisted of drawing multiple defenders and then making an easy pass to an open teammate. If that's your definition of a great passer, so be it.
I know what he was saying, I was pointing out (by showing evidence) that there really isn't a correlation there. As for the rest, who would you rather be passing to Danny Ainge, Dennis Johnson, Kevin McHale, and Robert Parish or Zydrunas Ilgauskas, Drew Gooden, Sasha Pavlovic, and Larry Hughes (you know the rest of the starting five on the 06/07 team that made the NBA Finals). I think you are significantly overestimating the skill of these spot up shooters James was playing with, even in Miami the rotation wasn't exactly riddled with great outside shooters (Wade, Chalmers, Anderson, Anthony, Bosh, Haslem, etc. - sure Ray Allen was and Battier was pretty good, but that is about it).
Bird was an excellent passer, may have even been better than James, but the lack of respect James gets is pretty astonishing. James' instinct is really good when it comes to passing. He is the best low post passer I've ever seen especially with his face to the basket. He has great control and reads the defense really well.