OK, bash away..
I am not fan of the TC GMajor/GForce series. Well, not as a primary FX unit. I like "analogue warmth," and IMO, they are missing it (rightfully so). For "neutral" digital effects, cool. In front, no way. With a "slave" setup for w/d/w or similar, I would probably still want something less sterile.
Axe FX.. I bought one, tried it for the trial period, and sent it back. It is an INCREDIBLE piece of gear. I do not care for modellers, and hard as I tried, it would not do it for me. However, with this one, it was only the preamp section that fell short. In front, I did not care for what it did. I do not think I have ever used a piece of digital equipment in front of an amp that did work for me. Boss DDL, rack gear, etc. As a post-pre unit, this is tops. If I had the $$$, and did not need to spread the budget across an amp or amps as well, it would have stayed. Oh- the "DI speaker emulation"? Not for me either. I still wanted to run the output to an amp and mic my cabs.
Rocktron... Replifex would be my first choice, and I would likely want to pair an INtellifex with it. Analog front end, very nice. Digitech 2101, believe it or not, would be another choice. Post-pre, Axe FX, Korg A3 (or A1, A2), or my trusty SGX 2000 (hope you didnt laugh and have drink spray out your nose
). For specific sounds, the Yamaha SPX series is nice as well. Of course, the Line 6 rack stuff was brilliant, and some of the Lexicon stuff is very nice.
Up front, pedals. Post-preamp.. stuff that "retains tone." Post-power/slaved.. almost anything. I like character, but if I cannot "paint well with it," it won't matter if every guitar god has used it. And in that lies the rub: until you try it, you will never know. It is the most frustrating and costly aspect of GAS/tone chasing. I have a set of "brushes" to paint with that I really like... but, I love trying new paints... canvases... charcoals..