Paladin and Mage

Hey guys, I just realized that I actually have a very well geared prot pally and a very well geared fire mage on different accounts, and I already have a Keyclone license... Both toons are low 50s.

WOAH!

Anyways, I was wondering a few things:

1: If I decide to MB w/ them, should I respec the mage frost? I'm already heavily invested in fire dmg gear, but if frost is better for that kind of stuff... here i come!

2: Would they have synergy? I mean, I know I can just get aggro on pally first then it can kind of autopilot, cuz that's how they are, but I was wondering if it was just something that wasn't done due to how crappily they'd work together.

Hope this is the right place for it. >.>
-MB!

1. Depends on what you want to do, in solo PVE, personally I prefer fire over frost, but that's just me.

2. I've played both in a raiding environment and they can be fun, but there wouldn't be a lot of synergy between their playstyles so while they will work nicely as a combo, you'll definitely have to keep an eye on both due to their very different spell/attack styles.