Lol. I'm down on all 4 guys you want.
Markkanen, Lydon and Rabb don't project to be very versatile offensively and have serious defensive issues. I'm with you on Collins, though. Eye test has never matched the production for me and he's another pf with a limited defensive upside.
Bigs that I like include:
- Robert Williams: Defensive fundamentals and motor are serious issues and he'll need to be able to play the PF to reach his upside (borderline all-star), but he's still young and has an intriguing foundation of skills to build on--Elite lob target/finisher, weakside shotblocker, fluid shot mechanics and passing vision.
- Justin Patton: Strength and conditioning are the biggest problems with him. Also might never be strong enough to consistently hold his position (narrow frame/high center of gravity) or enough of a rim protector (instincts/length+reach don't look elite) to make it defensively. Might have enough skill potential to make up for it, but he's still very raw on the offense end.
- Johnathan Motley: Needs to play with more energy and awareness defensively, but brings a wide range of skills offensively plus above average defensive tools. Has the fluidity and range athletically to play both 4 and 5. Projects to be great in space where he's a much better athlete and has the shooting touch, handle, craft, agility, passing instincts and ability to draw fouls to be highly effective in pnr and spot up situations.
- Bam Adebayo: Elite vertical athlete in space which makes him a very good lob target/dunker spot finisher. Has the rangy/fluid athleticism to guard in space/pnr and switch plus the frame to play small ball 5. The jumpshot will be big for him as far as expanding his offensive skill set because right now he looks like strictly a play finisher who plays fifteen feet and in. Scary considering he doesn't have great length/reach or touch/craft around the rim in traffic (gets swallowed up if forced to put it on the ground at this stage)
- TJ Leaf: Would take him as my offense first big over Markkanen. Projects to be more versatile offensively, and can play the 4 defensively if he can add upper body strength. Markkanen is a clear 5 on both ends who will be far below average defensively for the position. Don't think he brings enough outside of the jumper to make up for it. Also could lose some versatility as a shooter as he bulks up which is an issue considering he's already a below average vertical and straight-line athlete.
- Jordan Bell: Elite defensive numbers on an elite defensive team plus the tools to give him a reasonable chance to translate. Offensive skill set is an issue but shows signs of mid range spot up J and can pass while also taking care of the ball.
Williams and Patton are the highest upside guys, but also furthest away. Small percentage chance to reach ceiling as well. Williams probably the higher floor due to outlier physical tools.
Motley and Bell are the closest to playing right now. Bell probably has the higher floor do to defensive upside, but Motley is probably the only big outside of Patton and Williams who has a chance of becoming a starter while also having a reasonable floor as a versatile two-way third big.
Leaf probably won't play much as a rookie either, but is the most versatile of the stretch 4's while also having a chance to not be a disaster defensively.