Runes of Magic is a game that I sign into every other week or so when I remember, run a daily or two, and sign out. Probably the biggest decision I've been pondering is which class to take as a third option to accompany my Druid/Rogue.
The optimal min-max solution would be to go with either a scout or a warrior, as either class can be used as a secondary class with the Druid to heal, and in some combination with the Rogue to do DPS (melee as a Warrior/Rogue or Rogue/Warrior, ranged as a Scout/Rogue). The more I've considered this approach, the less interested I am in pursuing it.
The primary role of the character as I'm currently playing it is to do ranged caster DPS on the Druid/Rogue combination, and try to somehow scrape together the bare minimum Rogue levels needed for stats, skills (and Elite skills), etc. In principle, given indefinite time, I could earn enough TP to allow the Druid to also pursue healing with the alternate subclass, but it's really not likely that I'm going to invest the time needed to make that happen.
Instead, I'm strongly inclined towards picking up the Warden, a melee pet class (when used as a primary) that contributes mana-based melee attacks when used as a secondary. I've always enjoyed pet classes where the player fights alongside the pet, rather than hiding behind it. I would have the option of leveling as either Warden/Druid (allowing the Warden to heal herself, rather than just her pet) or as Warden/Rogue with more DPS and the option of dual wielding. It's possible that I will enjoy Rogue/Warden more than I enjoy Rogue/Druid (a melee class that just feels lackluster because its other half does not melee), or that the Rogue will continue to be something I level as much as I have to.
If I ever attempted endgame, I suppose this would leave me as a character that does two flavors of DPS (ranged on the Druid/Rogue, melee on either combination of Rogue and Warden). That said, as I wrote about Rift, I'd rather have two roles that I enjoy - even if they don't earn me group invites - than many roles that are useful on paper but that don't make me want to log in to use them.