>>50384368serebii has the most info in one place at a time and easily the best layout of any of these sites
looks piss-ugly, but it's very to-the-point and useful
also loads the fastest by far
bulbapedia is total fucking shit, practically unreadable on mobile and takes at least a minute to load whereas serebii'd be done in like 2 seconds, I hate using it so much
pokemon.db is probably the best middle ground- it takes longer to load than serebii but less than bulbapedia. has good info for each mon in terms of official art/sprites (without needing like 3 separate click-throughs first), as well as movesets and egg groups (I especially like how it organizes type articles), but it's pretty bad for encounter tables and walkthroughs
the worst part about serebii (other than mr anus himself) is probably how outdated some of the gen 3 stuff is, there's outright incorrect info (like how to get feebas; it says you need a super rod, but you can find it with an old rod just fine) and typos galore. it's still mostly correct though, which is good, but makes that generation in particular a bit more annoying to look up there.
don't really know of any other fansites that aren't dead, if someone knows any living forums or some shit please point me to them
