Well, I'm not sure about anyone else. But...I actually like Rome 2 (current state) a lot more than Attila, without mods. Rome 2 factions seem to have a lot more variety, better choice of factions (not including unlocking all of them with mods) and is generally is more fun to me.
Attila horde thing is kinda cool. Except, if you are attacked, its a normal battlefield. Kinda lame whether its accurate or not. Kinda defeats the purpose for me, might as well take cities and enjoy epic sieges.
Campaign map AI seems worse though...as Huns, I went from my start location all the way to the UK to free the britons (cause why the hell not) and literally EVERY faction followed me...none of the factions had any armies...all went toward my main army as my 1 horde left behind went on to pillage everything for free. Literally eastern romans had EVERY army in briton as I pillaged their entire empire.
On legendary difficulty.
Completely bugged.
Attila has few faction variety, though you can liberate factions...but...like britons, when you unlock them or liberate them...its just normal roman troops. I'm guessing they are gonna heavy DLC this with unit dlcs. From what I can see, because of how MANY factions are copied from another (Armenia, Britons etc) there is gonna be TONS of DLC compared to any other total war. Either that, or this will have the worst unit variety I've personally seen in a total war (never played shogun 2, dunno how that is).
I don't like it at all. Rome 2 EE is way more fun (without mods). And I don't think I'm going to like Attila with mods nearly as much as Rome 2 EE with mods. Its gonna take a HUGE overhaul for me to enjoy it. Something like, TONS more units for every faction and put more factions on the map or something because its pretty limiting and make the horde thing a lot better. And rome 2 (without mods) seems to have way more content than attila offers...
Maybe after a bunch of DLC and mods come out Attila will be better. But...I pretty much will be playing Rome 2 EE. I find battles in Attila to be much easier (normal battle difficulty, same as I play on Rome 2) and the campaign AI needs to be fixed. Rome 2 I find battles to be a lot more challenging and slower paced. Attila I pretty much go in and pwn everything.