I think two future All Stars, at the point and at Center, is fair compensation for Lecon.
No its not.
1 MVP > 2 all-stars
If Bogut and Jennings were All-NBA players it might work, but not all-stars. There is big difference between Top 30 arguably from year to year to consistent top 5 in the NBA and MVP caliber players.
2-player tandems I think are fair value for LeBron (regardless of fit):
Chris Paul, Emeka Okafor
Stephen Curry, David Lee
Brandon Roy, LaMarcus Aldridge
Carmelo Anthony, Nene
Deron Williams, Al Jefferson
Rajon Rondo, Kevin Garnett
Derrick Rose, Joakim Noah (in this case I think this is overpaying)
Kobe Bryant, Lamar Odom (Gasol is overpaying)
Joe Johnson, Josh Smith (but with Johnson's contract, this may be drastically under-valuing LeBron)
Players I think are viable (but not equal) value for LeBron: Dwight Howard, Kevin Durant