I have a hand-wired AC15 which I love. But my bread-and-butter amps are all Fender. All four of them. :-) I also have a Mesa/Boogie take on the Marshall thing. I rarely use it. :-) I even use my Fender Bassman LTD on P-Bass at my jazz combo gigs. I have a Mesa/Boggie bass amp too, which is sort of doing an Ampeg thing. Fender rules though! Everything slots into the mix so well.
Eugenio Upright, 60th P-Bass, Select J-Bass, Geddy Lee J-Bass, Yamaha BBP35, Viking Bari
Select Strat, Select Tele, Am Pro JM, LP 57 Gold Top, RS520T, T486-RB, ES295, PM2, EXL1
WX5, XK1c, Voyager