I’m just starting, ladder. I won’t have access to top tier equipment.

Meaning if your choice for lightning sorc is that you get infinity merc, it won’t work for me.

So what is best? Cold, fire or lightning?

super budget just starter gear (spirit sword, lore helm etc) blizz sorc
next step up, full tal sorc, fire sorc gets my vote... grab a sunder charm and put facets in all your gear, you get up to -30 (or -35 without spirit) fire res. good enough to own sundered FIs

Thanks for your reply!
Unfortunately I play on console now (hate on me..lol).
I think aiming blizzards would be tricky

Blizz + glacial spike works wonders on console imho.