I like the way you phrase the poll: "Which series do you like most???" as opposed to "Which series is the best?" Makes it more of a fun personal preference poll.
After owning a Quad, a TriAxis, a Rect-o-Verb, and a Mark IV, I voted Mark. In fact, I traded the Recto for the Mark.
I did love the Recto and miss the possibility of getting massive crunch. However, I typically used it in the Vintage mode, especially because my band likes to appeal to more than just the metalheads (although I do enjoy the heavy stuff, but we also enjoy having a larger crowd with a lot more girls in attendance). :wink: I also enjoy the singing leads I get out of the Mark.
Haven't tried a Stiletto yet. Eventually I'd like to get one and another Recto, but (fortuantely) my one-bedroom apt already looks too much like a music store warehouse. Limited space helps reduce GAS.
Lopp