Something I've always wanted to do was do a partner tandem. So if you're going to play in the Realms one player picks say....a Red Wizard and another one plays a Thayan Knight (protector) that's "with" the other character. Same concepts for say a Hathran from Rasheman and her Berserker protector (I actually have an AWESOME character concept from 4E that works well as they're a Berserker Heroes of the Feywild that can turn into a Bear and is from the Bear Warrior tribe). Things like that which delve into the setting's history and lore just make me all giddy!!
I do play Red Wizard and Cleric of Beshaba combo's.
The fighter I played preferred lighter armor. He even successfully appropriated drow mail...with a pilfered recipe for non-magical oil that shielded drow items from direct sunlight. Ah yes, you must love +5 gear that does not register as magical, nor penalized stealth checks.
The common theme it seems for my characters seems to be that they start out with, or can later have, the ability to use magical spells.
Whether it is a Ranger, a Thief or a Wizard...arcane magic seems to be something I really enjoy using.
The usual exception to this is at low level I obviously don't have arcane magic for the ranger or thief character I may be playing and so it seems like I don't have a thing for the arcane...but it is apparently always in the back of my mind.
I never got there with a Dwarf thief; but I always dreamed of having a dwarven Fighter/Thief who had the ability to use spell scrolls (in 1e/2e). 3.x made it much easier to use scrolls as a thief. I haven't played 4e more than a handful of times and 5e the same...