It's interesting, but APM in SSBM really just doesn't matter ;/
Someone mentioned this earlier, but a large part of why SC players have programs that calculate APM is because there's so much that needs to be done at the same time that there's actually a purpose to having high APM. Not saying you don't need to input actions quickly in melee, but in all honesty it just doesn't matter.
APM in SC can be an indicator of how much a player can do at a given time, while in melee it's not that big of a deal. If you can do an AT in melee, you can do an AT. It doesn't really matter how fast you have to be in order to do it.
And I feel like it's a lot harder to hit higher APM in SC than SSBM. Mainly because the buttons and control sticks are all there. When you do an AT, the buttons are never going to move. in SC, even if the keyboard buttons are all there, there's a lot more space in between the hotkeys as well as the SLIGHT (<- note sarcasm) setback of needing ridiculously fast/accurate mouse clicks. Trying to get an HT into position to psi storm in the middle of some 4-5 control groups of lots/goons/HT while trying to position well against dark swarm and trying to flank properly with zlots and then doing everything all over again as the other player micros his units. At the same time making an expansion, controlling your shuttle reaver so you dont get butt****ed by ultras, making units out of 14 gateways, constantly making workers, scouting (watching for drops, builds, proxy builds, fake builds, fake proxy builds, crap theyre sending to your base to harass, crap theyre pretending to send to your base to harass so you play more defensively letting them gain map control, etc), fending off an actual harass, fighting another small skirmish halfway across the map, the list goes on. There's so much more crap to do at any given time in a competitive SC game that it's not surprising professional players (esp Terran) can peak at 500/600 apm with minimal spam. Just watch an FPVod and unless you've played COMPETITIVE SC before, you'll probably have no clue wtf is going on because the screen changes every 2 seconds (actually, you probably wont know wtf is going on anyways cause just think about it, 300 APM is 6 actions per second. In SSBM, that might be a SHDL. In SC, that's 3-6 seperate commands being sent, so it might be: "build a worker, move HT over a bit so it doesnt get butt****ed, send shuttle over, psi storm, flank with zlots")
There's also the fact that SC games can last anywhere from 10 minutes to 2 hours (with pro players keeping a consistent 300+ APM (250+ for games that drag on) the entire time). The 300+ APM SSBM games were what? 4 and a half minutes? PLus those are among the faster melee players I'm assuming. 300 in SC is an average.
