I ended up voting Ranger, but with a caveat.
See, I picture a elf as a spellcaster, but nothing in D&D hits the right nail, because a nail like the one I am thinking of isn't there. It's the concept for a base class which hasn't been born yet.
I'm thinking of a spellcaster which has a new spell list, combining elements from the sorcerer (spontaneous casting, as well as some of the more flavourful spells) the druid (nature connections, and most if not all of the spells, since elves are tied to nature) and the bard (sing-song sorta stuff, along with Bardic Knowledge.
This sort of (essentually) highly-specific racial base class hasn't been done yet to any degree, but boy, if someone had something like this, I'd buy it in a snap. This draws heavily on the Tolkien elves in Rivendell and Lothlorien, those magical, but secretive ones who have arcanse lore from ages past. The type of all-spanning magic which all the other forms of the younger races magic sprang from.
I dunno, it's a thought I've been through around, but have yet to replicate to any degree, but for my homebrew I'm likely going to be statting up somehting like this. It's gonna take a long time to do so, however.
Duskblade was a close third, as well. Although - Con really hurts that class, but the flavour is rght where it should be

Bard was a closer 4th, as well (and WTF is with Gnomes being bards? Yeesh

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