still early to do this with free agency still going on and C's trying to get a TPE from Charlotte but here's my thoughts:
East
1. Milwaukee
2. Miami
3. Toronto
4. Celtics
5. Brooklyn
6. Philly
7. Pacers
8. Atlanta
—> notes
I think Atlanta made enough moves to sneak in. I think Charlotte won’t come close despite adding Hayward. Orlando will just miss - figure them for the #9 spot. Toronto should be good enough in the regular season to get the third slot despite losing Gasol and Ibaka but I think they're the team most likely to be upset in the playoffs. Brooklyn should get the fifth spot just based on talent alone but they'll look really disjointed and Steve Nash will look as useless as an appendix for that team due to Kyrie and Durant doing whatever they want.
West
1. Lakers
2. Denver
3. Clippers
4. Dallas
5. Houston
6. NO
7. Phx
8. Utah
—>notes
I think the Lakers made enough moves to put themselves at the top of the heap and that’s very painful for me to say. I think Houston underperforms and if they move either Harden or Westbrook they miss the playoffs. I think NO and Phx will be much better this coming year than they were this past year. Utah barely edges out Portland for that last playoff spot.
West will still have someone over .500 that misses the playoffs whereas in the East I think the last spot or two will be under .500.
overall, this obviously doesn’t predict for injuries that aren’t known at this time. Example, Klay’s known injury knock GSW out of the playoffs IMO.
You think Utah barely makes it in and Portland misses the playoffs. That is just crazy to me. I mean I had them as the 2 and 3 seed. I really like what they both did this off season. Especially Portland. I think they are going to be a very good team, especially in the regular season.
of all the things I figured YOU would complain about is that I have the Celtics as high as 4th in the East or even in the playoffs at all 
As for Utah and Portland, I can't see how you'd think they were that high in the conference to garner the 2 and 3 spots over the Clips and Denver and Dallas at a minimum. I don't see a compelling argument to put them ahead of NO either but that's my take on the situation.
I think Denver is going to be a bit worse than last year and they will miss Grant a lot and Plumlee to a lesser extent, especially with Millsap just getting older. I don't really like what the Clippers did and they still have the Kawhi taking 20 games off problem. The Clippers are likely a much better playoff team than regular season team.
As for Utah, they won 44 games last year (2 wins less than the Nuggets). I think Mitchell is still getting better and they won't be appreciably worse anywhere else. I don't think it odd to think they will improve upon their 50 win pace, especially since they didn't play overly well in the bubble before pushing Denver to 7 games in the first round (after blowing a 3-1 lead no less) and not having Conley in the 2 point game 7 loss.
I believe Portland was an aberration last year without Nurkic and basically Collins. They also got a lot better in their free agent additions. I think they may very well may have improved the most of all the playoff teams from last year. This is a team that won 53 games and was in the WCF just two seasons ago. I think they have the 2nd best starting 5 in the West (behind only the Lakers). Lillard, McCollum, Covington, Anthony, and Nurkic is a great starting 5. I like Hood off the bench (potential 6th man of the year candidate) and they will have Collins back in January and I think players like Jones could really thrive in his role. I expect Portland to be back in the mid-50 win range again and a real threat out west, just as they were 2 years ago.
As for the Pelicans, they might not even be better than they were this year. Losing Holiday was a big blow to them. Bledsoe is ok, but he isn't Holiday. I think Adams will provide some cover for Zion, but I don't like how they fit together. There is certainly some talent on their roster, but I don't think they will be a great team or anything. They have talent, enough talent that I put them as the 8th seed, but I certainly wouldn't be surprised if they missed the playoffs, especially if Golden State (who I have out) is better than I think they will be. Also, I'm really not sure how Zion, Ingram, Ball, and Lewis will actually fit together long term either. They may have to move Ingram at some point.