Ive seen alot on the mvp 2 and the istick.shooting for one of those two
I only own the MVP2, and after close to a year of use, it still works fine (even though it doesn't get used as often as it did).
I've heard a lot of good things about the istick overall as well, and at that price point, I think they're both good choices.
The istick will get you more power, but it uses PWM (pulse width modulation) so its voltage output isn't as smooth as the MVP (it "pulses" at 33.33 hertz). Some folks can tell the difference, but I'm not one of those people.