I think Kent Bazemore is the Las Vegas summer league MVP this year. He's been the best player on the best team and averaged 18.5 ppg, 4.7 rpg, 2.8 apg, 1.7 spg, and shot 44% from the field. He showed us an improved three-point shot, exceptional abilities to finish strong around the rim, and even the ability to find the open man from time to time.
Projected Las Vegas Summer-League 1st team (I'm excluding Buycks and Henson because they only played in 2 and 3 games respectively)
G - Kent Bazemore (MVP), Golden State - 18.5 ppg, 4.7 rpg, 2.8 apg, 1.7 spg, 44% FG Shooting
G - Marquis Teague, Chicago - 18.3 ppg, 4.8 apg, 2.8 rpg, 44% FG Shooting
F - Markieff Morris, Phoenix - 14.2 ppg, 6.3 rpg, 1.8 apg, 1 spg, 1.2 bpg, 57% FG shooting
F - Mike Scott, Atlanta - 18.6 ppg, 6.2 rpg, 1 apg, 46% FG Shooting
C - Jonas Valanciunas, Toronto - 18.8 ppg, 10 rpg, 1.8 apg, 56% FG Shooting,
2nd team (I couldn't leave any of these guys off so I picked 6, forgive me?)
G - CJ McCollum, Portland - 21 ppg, 4 rpg, 3.4 apg, 37% FG Shooting
G - Austin Rivers, New Orleans - 18.2 ppg, 3.6 rpg, 2.6 apg, 49% FG Shooting
G - Andrew Goudelock, Chicago - 19 ppg, 3.4 rpg, 2 apg, 47% FG Shooting
F - Jeffery Taylor, Charlotte - 20.3 ppg, 2.8 rpg, 1 apg, 48% FG Shooting
F - Jack Cooley, Memphis - 15 ppg, 9.2 rpg, 1.2 bpg, 53% FG Shooting
C - Cody Zeller, Charlotte - 16.3 ppg, 9.3 rpg, 1.5 bpg, 52% FG Shooting
I could argue flipping Teague and Goudelock, but Teague looked more impressive to the eye and shot over 70% from deep.
I think some will argue that Markieff shouldn't have made first team, but you have to consider that he lead that undeafeted Suns team to the championship game.
Cody Zeller (4th in 2013), Jonas Valanciunias (5th in 2011), Rivers (10th in 2012), and CJ McCollum (10th in 2013). Of those players above only 4 were drafted top 10
A lot of the players that were drafted in the top ten are not playing in the summer league because they are either hurt (Bennet, Len, Noel), played in the Orlando Summer League (Oladipo, Drummond, Caldwell-Pope) or already established (Lillard, Kyrie, Knight, A Davis).
Most of those players have also had a year or 2 to refine their game with the help of NBA coaches.