I'll do the Top 10

2011

1. Kawhi Leonard
2. Jimmy Butler
3. Klay Thompson
4. Kyrie Irving
5. Kemba Walker
6. Isaiah Thomas
7. Reggie Jackson
8. Nikola Vucevic
9. Jonas Valanciunas
10. Tobias Harris

2012

1. Anthony Davis
2. Damian Lillard
3. Draymond Green
4. Andre Drummond
5. Khris Middleton
6. Harrison Barnes
7. Bradley Beal
8. Michael Kidd-Gilchrist
9. Jae Crowder
10. Terrence Ross

*Kinda crazy how GS drafted Barnes, Green, and Ezeli in the same draft.

2013

1. Giannis Antetokounmpo
2. C.J. McCollum
3. Victor Oladipo
4. Rudy Gobert
5. Nerlens Noel
6. Mason Plumlee
7. Steven Adams
8. Cody Zeller
9. Gorgui Dieng
10. Kentavious Caldwell-Pope

2014

1. Andrew Wiggins
2. Jabari Parker
3. Nikola Jokic
4. Rodney Hood
5. Aaron Gordon
6. Elfrid Payton
7. Jusuf Nurkic
8. Dwight Powell
9. Jordan Clarkson
10. Marcus Smart

2015

1. Karl Anthony Towns
2. Kristaps Porzingis
3. Jahlil Okafor
4. Myles Turner
5. Devin Booker
6. D'Angelo Russell
7. Norman Powell
8. Willie Cauley-Stein
9. Justice Winslow
10. Stanley Johnson

I don't think Gobert's upside is on Giannis' level. Defensively Gobert will likely always be better but Giannis is going to develop into a defensive monster in his own right. Whereas I think Giannis' upside offensively blows Gobert's out of the water. I think as a two way talent Giannis is a much better option to build around, I mean the guy is a 6'11" point forward with the ability to guard 1-5, he legitimately has MVP type upside and the homer in me legitimately believes he'll get damn close to that level. After the ASB when we handed the keys to him, there were several games where he looked like some ridiculous hybrid of KG and Grant Hill. Not at all saying he's going to be as good as either, but his raw upside is crazy imo and it'd be hard to pass up for any team. 

I get the Klay > Kyrie argument, I'm basing it more on raw talent level coming out of the draft than anything, I just wonder what kind of player Kyrie could've developed into had he been drafted to a more structured environment with high level developmental coaches. Kyrie at times shows straight up amazing potential, like towards the end of last season and into the playoffs, dude was actually taking pride in his defense, doing the little things while still being a killer offensively...if Kyrie had a guy like Pop, Thibs, Carlisle, etc to not just let him do whatever the hell he wants and actually develop the right way, I honestly could've seen him as an MVP. 

I would go with Giannis too. Gobert is older. Centers don't last long. It is true that it is a weak era for centers but Gobert doesn't have the offensive potential to exploit it. Meanwhile the game is getting smaller. Giannis has higher likelihood of having less difficulties guarding the point guards than Gobert, especially when years pass. Giannis is already developing an offensive all around skillset akin to garnett like you said but with Giannis' slightly different style (ie main ball handler).

So, Giannis has freakish wing span for rebounding/defense, he already is developing his passing game and becoming a point forward, fast break is deadly with him taking max of 3 strides, always an offensive mismatch, and could penetrate when he needs to. It's scary to think what he can do with more experience. Hopefully they can make the playoffs next year.

Also less likelihood that he will be manhandled in the post with more emphasis on guard play if it. Ever comes to it.