Completely even MU IMO
-Wolf's bair is great on oli's shield and forces olimar to react, but the best reaction depends on how wolf spaces and times bairs. The one thing all wolfs should note is if olimar PSs a bair, olimar can grab him.
-when both characters are in a neutral position, i think the one who plays a better aggro wins, because neither character's camping game is as effective on each other compared to the aggro games. Olimar can run up to wolf, shield the fsmash or laser, and then grab wolf. Olimar can shorthop side-B a purple at wolf, and then he is pretty free to do W/E to wolf. Oli can roll into wolf, then use uptilt or upsmash or pivot grab. Ect. Oli can bait out a defensive wolf's attack and pivot grab it.
Wolf can bair wall, fake out with a short-hop, then fastfall into jab, grab, W/E wolf does at close range. Wolf can fsmash right through every smash but a yellow fsmash at the tip. Wolf can fall down with down-B, and since most olimars take advantage of wolf being above him, it leads to a free hit. Wolf can roll into olimar than grab. DACUS punishes olimar if he ever leaps into the air
Wolf definitely wins the aggro game in terms of getting the first hit, even with oli's major defensive options.
-On the other hand, juggling is oli's advantage. Quite simply, olimar can juggle with a good mix of up-air, nair, upsmash, charged upsmash, pivot grab, uptilt, up-B, and purple side-B. Wolf has few options to get to the ground at percents lower than 80%. He can fastfall airdodge or nair, can use the invincibilty from down-B, DI away obviously, and land on platforms, but even so, he can take lots of damage due to oli's jugglign game.
Wolf doesn't juggle olimar well because olimar has whistle and wolf has few multi-hitting moves, but olimar is floaty and his aerials don't have good range compared to wolf. Wolf will mainly benefit by getting oli back into the air before he can situate himself on landing, mostly by using fsmash right before oli lands and shieldgrabbing any landing.
-Olimar and wolf won't have trouble killing each other once they get each other in a juggle or off stage, but throwing flat out kills moves doesn't work with either character without a good read.
Each character really wants to get each-other on the edge, wolf has dsmash and bair to cover ways olimar can get up, and a fresh dsmash at the edge, with proper edge-gaurding, kills olimar at roughly 65% or higher, bair won't do that unless the olimar has bad DI or high %s, but wolf can take advantage of olimar as he tries to recover. DON'T be right next to the edge, lest you eat olimar's up-air through the ledge.
Olimar's fsmash>wolf at the edge. Its covers get up jumps, regular get-ups, planking, staying on the edge too long, wolf really needs to look for openings betwen and during oli's fsmash in order to get up. Get-up attacks when timed to end just as olimar starts another fsmash is normally a good idea for wolf, getup roll is the same concept but riskier because olimar has more time to react. And jump off edge->immediate air dodge gets wolf of the edge normally, but at the risk that he committed himself to an airdodge near the edge.
Wolf wants olimar at jab range, while olimar will be trying to keep wolf at fsmash range
olimar's earliest kill move is upsmash, that move is fast, powerful, and safe, so expect olimar to use that a lot, especially at kill %s. Olimar's more reliable kill moves are fair and grab. Olimar mains, when going for the kill, NEED you to either throw out something punishable, otherwise landing the kill is hard. Wolf, on the other hand is lucky, do shield pressure, poke it with dsmash at high %s, and that is oli's stock.
Your not gonna be punishing much of what olimar does, just abuse priority and pressure.
The rest of this MU just consists of making good reads on each other and keeping momentum, its too even.
Most oli's CP lylat and halberd in that order. Good olis might CP castle siege, which is amazing. I would CP frigate because of extra purples+yellows. IDK what wolf wants to ban form those. For the starters, every olimar is different, so idk what to say, besides you should probably strike SV, because the moving platform gives olimar a very good safety net. IIRC wolf hates lylat, strike that, and castle siege is great for oli.
Oli and wolf do well on similar stages, but after fighting Seagull, i have to say that wolf going to halberd is legitimately a good CP. Yoshi's island would probably also work well for wolf, and idk how wolf does on RC and brinstar, but neither of those stages are good for olimar.