Lusch I've got limited experience with the listed UU tier and I can tell you that your assumptions are correct, UU is dominated by water types. Kingler, Golduck, Poliwrath are all top threats, while Vaporeon is another strong choice. In my experience teams would often stack water types. This leaves stuff like Charizard opportunities against Tangela, Venomoth and pretty much nothing else. Even with Fire Spin, it's hard to see Fire types thriving in an environment at all similar to the one that currently exists.
Edit: I actually like the thought of developing new tiers, especially if people are really adamant against treating BL as a playable meta, so here are some random thoughts:
Jolteon- Does anyone disagree that this is OU?
Dragonite- Clearly OU.
The other ones (Cloy/Bel/Cuno/Persian) are much more open to debate, and even though I recently argued that they should be OU over on pokemon perfect, I'm actually leaning the other way on some of them now.
Persian I'm thinking can
drop from OU. I mean in theory it's got that revenge killing/cleaning role, but I just find it so underwhelming. Its damage output is kind of meh. Tauros comparisons are obvious, and compared to Tauros' crit rate and more importantly Hyper Beam, Persian just underwhelms. Persian's inadequate bulk is another massive turnoff, since all you really need to stop it from sweeping is two pokemon that can live a single Slash (or one that can live two), since just about everything 2HKOs the cat. Maybe I've just been playing it wrong in terms of what stage of the game I start bringing it in, but yeah its drawbacks just aren't worth it imo.
Victreebel on the other hand,
belongs in OU imo. Yes, it's a pain in the arse to build a team around it and find opportunities for it, but when you give it that opportunity it absolutely terrorises a lot of teams. Especially when you consider how many teams rely on slow pokemon in the midgame. With the standard team being Lead/Chansey/Lax/Egg/Tauros/??? you're really not seeing anything fast in the midgame unless it's in that free slot, since the lead takes sleep and Tauros is saved for lategame. That means Bel can do a lot of damage.
Cuno and Cloy I'm a little undecided on- they're both incredibly useful defensively, but with every water type in existence walling them until the end of time, there's a lot of matchups where they simply don't accomplish anything beyond soaking up a couple hits. Otherwise they're legit, Chansey is annoying but they're both capable of applying enough pressure for that not to be a total buzzkill
Check in with me tomorrow and I'll probably have completely different opinions and I suspect people will disagree with Bel>Cuno/Cloy, but whatever
