perhaps so dmg but we are talking about who teams well with snake, so knowing that G&W+Wario is better than Snake+Wario doesnt really help this discussion, which is about as active as a piece of ****, where did all the good snakes go...
so snake and wario huh? this team is rather good because as everyone knows, snake can cover the ground and wario can cover the air, and they support each others weakness's too, a good wario can use his aerial speed and mobility to avoid the oppnent he's fighting agaist and get over to snake to save him from being gimped or juggled, likewise snakes mortar slide is great for getting over to a wario thats about to get gay'd by grab release ****.
warios throws are good too for setups, fthrow and bthrow into up air are good (or uptilt if your right next to wario and quick enough) and warios fthrow is also great because as you see him start to swing you have enough time for snake to do a full hop nair so that the oppnent is throw into it, **** damage and good for killing.
also planting a C4 on wario is great because obviously he can do throws to C4 on the opponent, or even bite release into C4, but if you want a nice little trick thats super easy to do, just give wario the highest port and then you can just plant wario, wait for him to bite someone, and then explode it while they are still in the bite, they'll go flying and wario will have grab armour and only take the damage, good killing tactic and doesnt really require any timing at all.
it can also be quite hard to approch a good wario, so another good tactic is the semi walls of elysium (you'll find out about the proper walls of elysium once we get to wolf
) basically snake stands near the edge and camps with nades while wario kinda just floats in front of snake and prevents the enemy from getting to him, sounds stupid I know and I'm not really going into any detail, but you'd be suprised how good this can work.
wario and snake both do good damage and live for ever, stages you want are really up to you, I'd go for stages with a bit of room like FD or pictochat, BF is good aswell and halberd can work well too (anything with a low celing is good for snake and warios uair will be good for killing here too, but you wanna be extra careful that wario doesnt get grab released) and if you really know what your doing, sometimes jungle japes can work really well for you too (as long as your oppnents arnt using characts like falco or dk)
so its a great team, if your playing against characters that cant camp, having snake stand his ground with nades and tilts whilst wario hangs around above him and covers the air they can make a frustrating wall thats very hard to approach.
anyways thats about all I can think of right now, hope that helps somewhat.