2x druid vs 2x shaman vs 2x paladin?

So I've been considering starting multi-boxing, and I think I'm going to start with dual-boxing; I can pay for two accounts and still feel like I have a soul. Maybe later that number will increase. ^^

Anyway, I've been racking my brain for dual-box combinations. The 5-box ideas work really well because you have a full party and one dedicated healer with 3-4 dps and maybe a tank. But with the 2-box, my problem is if I'm just dedicating 50% of my manpower to healing, does it make sense for me to even take the step? I suppose it would add another challenge, but I'm not sure that controlling a tank and a healer would be all that fun... at least in my eyes. Feel free to convince me!

I started with a 2x warrior idea, both dps, and just going for fast damage, but then I figured I would make them pallys to have the option to rez/heal/be shiny.
I see a lot of the 5x shaman due to their versatility, but I'm not so sure the awesomeness would be carried over to a 2-box.
And as for the druids, I saw them as having the same versatility as a shaman... just in leather.

Thoughts? Comments? Concerns?
Thanks ahead of time.

Since it's x2 i'd suggest druids. shamans (in my opinion) are for 4+ boxing. Although lack of tremor totems means your gonna get feared... Maybe try 1 shaman and 1 druid combo?