1) Cyriss (wacky shenanigans) and Cygnar (all the 'Jack Marshals and journeyman warcasters available plus Nemo) in Warmachine, Circle (Kaya, stones, Fury-efficiency tricks) and Legion (Shepherds, Forsaken) in Hordes. In any case it depends on your warcaster, some like more 'jacks/'beasts, some like more infantry.
2) Focus is more limited but more reliable. You don't have to keep your forces together to use the focus on your warjacks and your warcaster remains effective when you're out of warjacks; since warbeasts can usually run more fury than you can feasibly generate focus warbeasts tend to rely on volume instead of one-time punch. Focus forces you to plan your turn ahead of time and you can get screwed by the dice, fury allows you to adapt and improvise but leaves your plan vulnerable to being futzed with.
3) Even split, they play differently but I'd be hard-pressed to call one side more fun than the other.
4)
EHaley is powerful, difficult to use, and frustrating to face, and she's probably the most powerful warcaster in Cygnar; that said she really isn't any more frustrating than any of a dozen warcasters. I'd recommend against starting with her simply because she's difficult, unforgiving, and people will assume you're bringing her because you know how to play her and react accordingly, not because she's powerful.
5) Theme lists are almost never a good idea. The only one I know of that's particularly good off the top of my head is PXerxis', though PAbby has some strange shenanigans with hers.
6) There isn't enough electrical damage/electrical immunity for this to matter, not to mention units with electrical attacks pretty much always have other options. Two units of Stormblades smacking into each other won't do the shooting attacks or the electro leap attacks but will still tear each other up with normal melee attacks.
It sounds from the questions like you're interested in Cygnar; if that's the case I suggest paying attention to the Gun Mages. They're a very representative unit; if you like Gun Mages, you will like Cygnar.
Automatically Appended Next Post: Torga_DW wrote:Hmmm. I have this vague recollection in my head that skorne do the big guys list in hordes, is that correct? I think i need to look at more pictures or get some books to see if any of the models grab me.
Skorne is one of my primary factions; a warbeast-heavy Skorne army is a very hit-or-miss affair that has to get some slow heavies upfield and win big on the charge turn or go home. It's not a great way to start playing; Legion and Circle both do warbeast-oriented armies better and with a broader selection of possible approaches.