Man, that's tough, since this is the first FW where I've liked damn near every amp model I've tried thus far, including some I specifically did NOT like previously, but...
I've lost the most time lately to the Trainwreck Express model. 2nd choice would be the AC30 HOT... and those two say a lot, because I'm normally the gain-whore type.
Triptik & Tucana (all models) are awesome as usual. Yet again, the 5150 III saw a major improvement. Badcat & Badgers have been fun. Same for the Lonestar, but I'm eager to see how it is post-G3 tune-up. Everything "tweed" sounds & feels better IMO. Lots of folks seem to be gravitating toward the Dumbles, but I haven't gotten that far yet... really no wrong choices!