I have only flown the Y/A A-4 and the TGA F-15 but I can tell you the TGA F-15 is rock solid and not difficult to fly.... Mine is the Byro-version (pusher) so the speed is modest, but it rotates quickly-
The Yellow A-4 flies on rails (Ours has an OS-91/Ramtec/ JMP pipe..) but takes a loong ways to rotate...It moves VERY WELL when it is on step though! I love this jet but your mileage may vary, depending on the powerplant you select...
You WILL get better advice, but I wanted to turn you onto the TGA if you have not thought about it already!
Keeping in mind also that both Shaun Evans from Y/A and Terry Holston (TGA) are right here on RCU for friendly advice!
lata