Oh snap, that's right.
Yeah, I used to think Squirtle was a huge pain, especially since my patience has worn significantly thin from the more spammy style of Brawl and my transition from Melee, but as I've been getting used to the game and the matchup (I've
actually fought Pokémon Trainers in tournament! o_O), it gets much easier.
Venusaur is questionable. It's weird, like...really smart Venusaurs are hard to come by, but I think proper use of its BEASTLY forward tilt, forward smash, and up tilt can make the matchup very tough on the ground and at low altitudes. Venusaur seems to be one of those characters where you have to make very hugely telegraphed approaches from all the angles it can't cover to come in safely and try to combo off the stage. If that sounds absolutely ridiculous and stupid (I wish I could make video posts to show what I was trying to say), don't worry about it, but what I'm saying is that Venusaur tends to deal well with most of Yoshi's more obvious approaches, but has some very wide blind spots that it can't cover reliably, so making approaches there is effective, but it takes time and spacing to set up (not saying that your approaches should be huge and blatant on purpose).
Two things people tend to over exaggerate about Venusaur are its playability off-stage and its comboability (that is to say, the ability for it to be comboed). First off, carrying Venusaur off the stage is a very good idea; nobody will tell you otherwise and be right. However, I think it's pretty common for people to think that Venusaur off the stage means it's done for. While getting Venusaur off the stage
should mean it's offed, that doesn't mean you should slack off and make mistakes on the edge. Very much like Captain Olimar, Venusaur has a few tricks it can use to get a hang on the ledge and you should take every step possible to make sure it doesn't come back. Secondly, as for Venusaur being combo bait, it's kinda true. However, it has some very nasty combo breakers and you should be careful not to stay in one direction relative to Venusaur for too long. It can cover itself aerially from any direction while being comboed sometimes and not only are its aerial options powerful, but they can lead to some very nasty setups, like the neutral air semi-spike, or up air leading into Bullet Seed and other such setups. Venusaur is very home-brewed in the sense that there isn't a "way to play" the character, per se, so you will see very unique playstyles for each one you encounter. Just make sure not to forget these things, I think they're important.
I already put my thoughts on Charizard here earlier.
Yeah, stuff.
Man, I'm...really hungry. ._.
