Hello! What's the "needed" for guilds?

[Kalichan]

PF is almost ALWAYS waiting on tanks. That said healers are almost always 2/2 for groups and they're either waiting on Bard/Mdps or tanks. Primarily tanks though.

I've noticed that PF is always waiting for tanks, but that doesn't answer for FCs. I'm pretty solid in my decision, but when it comes to my friend he's most likely not going to want to level all. So if there normally is a need for something or an abundance of something in guilds, that was what I was trying to find out.