It’s a hard task to put all games into the order, but my list looks like it:
1.AB Original – legend, most addictive and still brings most fun from them all, even with lack of updates except Birddays.
2.AB Star Wars 2 – lots of strategies, cool characters and backgrounds + it’s Star Wars. Sad that Rovio discontinue it, still most funny game with non-classic sprites.
3.AB Seasons – awesome game with many different chapters, very hard (in good meaning of this word), still alive but much wounded by IAPs.
4.AB Stella – different, easier, more girly, but it had potential for really good game. On plus interesting characters with cool abilities. Could be much better, but it won’t be known.
5.Bad Piggies – only game with some kind of sandbox, guaranting lots of hours to making cool machines. Imo game with biggest undeveloped potential.
6.AB Epic – nice RPG with lot of levels, strategies, but after lvl 30 start to be a bit too grind-based. Monotonous last times.
7.AB Star Wars – complete game, very playable if you hunt records, probably nothing to complain. Also, it’s Star Wars.
8.AB Space – simillar to ABSW, only with a bit worser gameplay. Good ‘new’ abilities, Solar System and Mirror Worlds make this game only better.
9.AB Transformers – lot of characters, much fun even though lack of bigger updates, but IAPs, bugs, boring events…
10.AB Rio – nothing to offer except harder enemies, boss levels and some insane levels. Rio 2 part is one of my favourites in whole franchise.
11.AB Go! – has some kind of McGuffin story, but is much unplayable. Unless that, it’s a nice game.
12.AB Friends – Pretty nice game, but with many bugs, cheaters and cash grabs.
13.AB 2 – as Under Pigstruction it looked promising, but since some months this game it destroying. I like Silver, idea of boss levels, choosing birds, but lots of faceless levels, minimal ways to upgrade flock etc.
14.AB Action! – this game was even likeable after all. I don’t know how it’s going after worldwide release.
15.AB Pop! – once called continuation of AB Stella, it become very long game with random birds. Even it isn’t called Stella now.
16.AB Fight! – I liked idea of the game at start, but every new event was worser than previous. Heavy load of bugs.
17/18.AB Sky Fighters and Goal! – I wasn’t to play any of them yet, but I don’t predict high places.
BTW, I’ve written a bit too much, but I don’t like to put lists alone without any explanation.
