GT500 - no brainer to me! Think it will hold it's value better, got more power right off the get-go. Want more, little pulley change and re-tune. Think they were only going to build 2000 of them for 2010, makes them rarer yet. You will learn to respect the power!
2015 Stage 3 Roush
'66' Ranchero w/almost done 302 T-5 swap
2000 4x4 Ranger
2003 4x2 Ranger
'69' Fairlane Cobra, 428 4-speed waiting for work