I'll start by saying the the most appealing section are also the armies I have bought models on the cheap from various sales I came accross. I basically have enough purchased product to have at least 2000pt armies+ of each. My plan is to start the army when each new book is out. I'm currently working on Empire. I do want to work on my vampire counts but I'm very adamant on making it a bretonnian theme so there's lots of converting to be done.
Most Appealing
Empire I started empire because I still had the old starter box stuff laying around. Then I saw the potential for converting.
Vampire Counts The fluff is interesting and I like the modeling oportunities - you can have undead from any race!!! Once the codex got redone I was hooked.
Dark Elves Bad Elves, the raiding theme got me. And I also liked the rules. I'll be honest, it was the naked sorceresses.
Beastmen Cool models. Fluff is so so, I got 2 battleforces and a minobus waiting for a new book to come out.
Wood Elves I always like the wood elves in fantasy. Many of the models are unique and I like the way its more of a raiding force. I got alot of these guys waiting for me to build the army.
Brettonia Lots of knights and peasants, medieval army. I'm a big knight fan.
Dwarfs My friend played this army and then we switched one day, I read the codex and really liked them. I had way to many models so I figured I'd never get any until I came accross a 50% off sale so I got a battleforce. Then I hunted on ebay for some extra models and bam!
And bugman's brewery is in the heart of Wissenland so I won't be able to stop myself from making a bugmans rangers army.
Middle Ground
Lizardmen I almost started fantasy in 6th edition and was going to pick Lizardmen cause I liked the look of dinosaurs, the aztec theme, and the way the army synergy worked on the tabletop. Now they are kinda outdated so I no longer have interest.
Tomb Kings Bleh. No interest.
Orcs & Goblins Perhaps in the future, but I'd rather play against them for now. I got 2 starter sets worth of models so maybe I will one day start these guys. Or just use the models in cool fight scenes for other army unit fillers.
High Elves Fluff is alright, rules are cool but just can't get fully into it. I only bought a battleforce and some chariots to convert for Dark Elves and wood elves.
Least Appealing
Warriors of Chaos Like the marauders and some of the viking theme but I just could never get into the 'chaos gods' fluff in fantasy or 40k.
Ogre Kingdoms Meh. I think the models look ugly so I couldn't get into it.
Skaven The whole army and fluff just seem blah to me. Perhaps this will change in time.
Deamons same as WoC, just can't get into the chaos fluff.