(WOTLK PVE)Worth start here?

Hey guys, i'm comming back to play after some years, used to play on the moltem era
Does it worth to level up a char here to do endgame pve in any of the WOTLK realms? i just see people critisizing everywhere(they say lordaeron is diyng and icecrown is mostly pvp), so im scared of put the effort of levelling and find people doing only ICC.
Can someone give me some tip? im plaining on doing a ally druid healer to do all the endgame content, what is the best realm? its easy to find people to raid with?

Far more people to raid with considering Deathwing Ragnaros were merged. Theres virtually an ICC25n raid going on 24/7 in global on horde. Few guilds do Ulduar and thats about it from ICC RS and ToGC

The criticism you see towards Icecrown is the fact that gearscore requirements for PUGs are inflated as well as the overall toxic community with more RDF Dodgers, Gankers, and Quest Griefers than in Retail. If you want to do raiding, it's commonly advised to find a raiding guild as PUGs suck anyway. Icecrown definitely has a lot of PVP activity going for it, but raiding is fortunately also very common.

Despite Warmane considered to be having a very a toxic community however, I've actually met quite a few cool people on Icecrown, and you will too.

Really, I'm just speaking from personal experience, so just take my response here with a grain of salt.