Pikachu is far more marketable than Rhydon.
Well Xatu I find is ok since as a pokemon it barely moves anyway. It's based off totem poles I believe.However most people do think the "suspended by a string" animation for some flying Pokemon look crap and I have to agree. Wingull though, I think it works since they're gliders, but seeing Xatu suspended like that just looks sad.
Adding on to this, I much prefer and would much rather play again any Pokémon game where there just aren't a lot of changes compared with earlier games than a Pokémon game where there are quite a few changes, but a lot of them are really bad.I don't mind that pokemon has been using more or less the same formula for over 20 years since as far as mon rpgs go there isn't anything quite like it.
Not that other mon rpgs are bad, pokemon just has a fun accessibility streak that I enjoy quite a bit.
It's generally agreed that Squirtle is the best pick of the three, Smogon's tier list for Red, Blue, and Yellow and FireRed and LeafGreen puts Squirtle above both Bulbasaur and Charizard, and they explain why. Bulbasaur, for example, in RBY has to rely on Body Slam a lot, while Vine Whip falls off quickly while in FR and LG, it has to heavily rely on Sleep Power and Leech Seed as its main strategy, heavily reliant on TMs and HMs (such as Secret Power and Strength), and it falls off in the midgame (it especially struggles against Team Rocket with their poison and flying types). It's really only good against Gym Leaders, but it struggles in routes and against trainers since there's a lot of grass resistant Pokemon on the routes.Bulbasaur is the better pick of the three. Come on guys! Charizard is only useful against Erika! The first three gyms are Brock (Rock), Misty (Water), and Surge (Lightning)! Instant win with the grass type!