Most of my volume prior to now was on Stars. I get what you are saying about feeling like the fish sometimes. I think the player pool there, even at lower stakes tends to be much better. This can be a double edged sword. It does force you to learn and get better and really work to understand the game, however, in the short term it can certainly make it a lot more difficult to make money, which is usually why we are playing
The software and what you can do at Stars is second to none though and I think a big reason that more people don't leave.
I currently do most of my volume on Betvictor and that is because it is the chosen sit of the PokerVIP staking team. The player pool is definitely much softer. I play at 10NL and the majority of the players are pretty bad, even the "regs." I am currently winning at about 8bb/100, so not totally crushing it, but doing pretty well and only my second month there. I am not even that good yet either, I still have so much to learn. It is part of Microgaming and I would agree the software has a lot left to be desired. Pretty limited in what you can do, for example with bet sizings. I find the table sizes and dimensions for the normal tables to not be the good for my monitor either, so I have to use the fun tables which are really kind of annoying with all the avatars etc. . I prefer a clean basic look.
I have played on Full Tilt, 888, and America's card room as well. Full Tilt is not really worth looking at. Even though the player pool is much softer, they will be completely merged or "consumed" by Pokerstars within the next couple months from what I have read. I didn't have a ton of experience on 888, but you might want to have a look there. They are doing a ton of advertising to attract players and try and compete with Stars. I think they have pretty good first timer bonuses and the player pool is pretty soft from what I recollect and have heard elsewhere. Not sure what stakes you play but I know at 2NL they only allow 50bb max buy ins, so if you want to start there it is kind of annoying cuz you are playing mid stack poker from the first buy in, and have tons of other short stackers with like 5 and 10bb. Open shoving and flop shoving become pretty common. You can still make good money playing it if you know how to play that type of poker. All the stakes above 2NL have 100bb buy ins, so its not really an issue.
After watching Jon's Tonybet video I am going to be looking at them for sure. I have no clue if HUDs and tracking are allowed there but the player pool looked great.