I can't speak for the putters because the only one I've tried is the spin and I don't particularly care for how that feels, but I love love love MVP fairways. .....
....., but only recently discovered how awesome and useful the signal is. MVP (the gyro?) fairways taught me a lot about flight, snap, and my form. Understable MVP discs are not as forgiving as other brands for weaker arms. ......
.....Without enough rotational speed the disc totally underperforms worse than the archer. But give it enough and it blows away the archer with a much later turn (or a straighter hyzerflip with delayed turnover). I find that MVP understability is very consistent and controllable and that's why I carry both a relay and a signal.