I'd say Avery, just because he has one elite NBA-level skill. He's got a nice skill set offensively, but his defense will keep getting him minutes to hone his other skills.
What makes his offensive skill set nice? He's athletic enough to finish at the rim and occasionally beat his man without the ball, but there's tons of D-Leaguers that can do that. On top of being undersized, his range and FT shooting has been questioned since college. Can you name many undersized guards that don't either have a great handle or shoot 3s at a high clip? He doesn't even have one area that he excels at (like Tony Allen in transition) he's just a well-rounded player with very average skills. He also has shown his favorite/most comfortable move is pulling up for the ~20 foot jump off the dribble (the least efficient shot in basketball).
That doesn't mean his speed/athleticism can't allow him to become an average or above average offensive player. Just if he does it won't be because he got himself there with his own skillset. It'll be great creators like Pierce and Rondo drawing defenders and finding him in the right place at the right time.
I think there continue to be some misconceptions about Bradley's baseline shooting skills floating around. Largely because of some small samples that have gotten exagerated attention. Specifically his free throw shooting in college and his shooting in general in his first year in the NBA. Let me lay out his full shooting resume:
Year | Level | Team | Gms | FG | FGA | FT | FTA | 3PT | 3PTA | FG% | FT% | 3PT% |
2008/09 | H.S. | Findlay Prep | 21 | 234 | 421 | 73 | 96 | 27 | 70 | 55.9% | 76.0% | 38.6% |
2009/10 | NCAA | Texas | 34 | 159 | 368 | 36 | 66 | 42 | 112 | 43.2% | 54.5% | 37.5% |
2010/11 | NBADL | Maine | 9 | 57 | 126 | 30 | 35 | 10 | 27 | 45.2% | 85.7% | 37.0% |
2010/11 | NBA | Celtics | 31 | 23 | 67 | 6 | 12 | 0 | 5 | 34.3% | 50.0% | 00.0% |
2011/12 | NBA | Celtics | 64 | 200 | 402 | 62 | 78 | 22 | 54 | 49.8% | 79.5% | 40.7% |
Overall | | | 159 | 673 | 1384 | 207 | 287 | 101 | 268 | 48.6% | 72.1% | 37.7% |
The ONLY stinkers in any of that are
a) At Texas, they had him playing exclusively on the perimeter, taking outside shots, hence he took barely 2 FTs per game and almost a 3rd of his shots were 3PT attempts. But his 3PT% was still solid and his overall FG% was decent, considering how it was dominated by 3PT shots.
b) His first year with the Celtics, he averaged just 5.2 minutes per game, often being put in during the last minutes of the first half - long enough to run out on the court and back. He averaged just over two shots per game!
Other than those two samples, his other shooting stats, in situations where he got both significant minutes and also a more robust role in the offense, his shooting percentages are excellent.
Coming out of high school, Bradley was rated in the top 5 (and often #1) of prospects not just because of his defense. He was a great scorer in high-school, scoring 20+ in almost half his games and could score from all over the floor.
Contrary to what you said, coming out of college, many scouts lauded his excellent shooting mechanics, especially on the catch-and-shoot and spot-up shooting.
The overall body of work suggests that over time, Bradley will likely be around a 75-80% free throw shooter, a 35-40% 3PT shooter and 45-50% overall FG%.