Easy, Eternity. It has many familure "overdrive" charactarisitcs, but many refinements the others don't. On the surface, the Eternity is a great OD... get deeper, it's much, much more.
+1. The eternity replaced a FDII mosfet for me.
I actually have a Eternity Cot 50 combo. Best OD's i've used in a long time. The replaced both the FDII and KOT4 I had on my board.