mass infantry is the counter to ultras.
helions are terrible for anything other than economy harasment.
infestors right now are not so popular due to their high gas cost and the infantry tank style that most terrans play. infestors die too fast to tank fire + you need to micro banelings at the same time so they dont hit tanks or marauders.
Hellions melt Zealot Sentry. Like "lol MELTING" status. Against Zerg, they ruin Hydras and Lings. Good for a bit more beyond harass.
At the 1300 point level, yes, people don't use infestors. I can't remember the last time I didn't see a Zerg get Infestors.
We're consistently matched against top 10 2v2 teams, some of which are surprisingly bad, TBH, even for team players. The only anti-infantry units I see regularly are Siege Tanks and Colossai (which I find easy to counter.)
2v2 high level and 1v1 high level are completely different beasts. I've seen 2v2 teams that literally just all-in every game and have no clue how to play anything resembling a standard game, and these are diamond 2v2 teams. Often, the better a group is at team games, the worse each player is in 1v1.
I'd like to know what they are as I've heard of no such thing. I know 2v2 isn't considered nearly as competitive as 1v1 but I still think it is fairly 'balanced'.
You weren't around for the 6 or 7 pool with Proxy 6 rax reaper where you? One of the most "lol balance" things I ever saw. The depot before Barracks nerf killed that out mostly. But 2v2 is hardly balanced. So many early all-ins that are just brutally effective and so on.
Storm is great, don't get me wrong, but there's a very good reason you don't see it unless a game goes like 30+ minutes, and most games don't.
I generally get storm out before the 15 minute mark. If I scout tanks, I can get it out before 10 minutes. People talk about how impossible it is to tech to storm, but the time it takes to get there isn't the issue as much as the concern about Ghosts. I usually will get Storm out before I have Colossi out in PvZ.