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I'm kinda in your same situation.
I'm 28 years old, and I have a 2 year old. I also make indie films in my spare time. So that doesn't leave much time for gaming, but typically like you.. I play 4-5 hrs a night sometimes missing a night or weekend here and there.
I can't speak on the 2d F2P games you mentioned (never tried them) but Runes of Magic is a fun one, unfortunately its very cash shop oriented. I like to pvp, and pretty much the cash shoppers are unstoppable.
I'd be glad to try any free games you want to suggest, as I am looking for more people like myself to hang with online. Add me on xfire or whatever!
FFXIV on Behemoth, FFXI on Eden, and Gloria Victis on NA.