I'm using:
Ibanez Jem with stock evo pickups. Very gritty. Coil-tap in 2/4 positions, bright, but not very sparkly. Good for hard rock, not good all-around. Body is Alder. Maple neck with rosewood.
Ibanez J Custom RG7 7-string with stock neck and aftermarket evolution bridge pickups. Mahogany body with maple veneer top, maple neck with rosewood. More balanced tone, but still pretty focused. Two pickip model wired with 5-way switching that gives virtual 2/4 strat tones. These sound more sparkly than the Jem, but not that great. Useable.
Ibanez parts guitar 7-string. Mostly RG7620 body and parts. Universe neck. Blaze pickups. These are more like PAF, and sound it. More sweet tone, better 2/4 position tone. Overall great tone, pushes the amp just perfectly. I use LO and the guitar volume knob for 90% of my playing from clean to crunch. I use the clean mode for stuff that has to be perfectly clean, or when I want extra punch, and HI for solos when I get too lazy to make my own sustain, or when I want great pinch harmonics and feedback.
I also tried it with a Telecaster that had Lollar pickups and Stellartone tone control. That thing was OFF THE HOOK. Sounded beautiful. I will probably put a similar guitar together.
I also use a Maxon OD808, which sounds great on all modes. Drive 9:00, Tone 11:30, Balance max. I also love using a MXR EVH Phaser in front.