Aliens in the sims games...

I love them all, but I think I had the most fun with TS3 aliens. There's just a lot more different things for them to do and I loved raiding areas around the map and zapping sims. :D

TS3 Aliens had the best powers. They could also legit murder other sims by summoning asteroids, it was so fun.

I do like the fact that ts4 aliens have disguises but the alien discovery part makes no sense sometimes and can be annoying. TS3 aliens were better in everything else.

Ts4 Without a Doubt. The Disguises make them infinitely better. The only thing remotely miss is the Spaceship could terrorize the town with as an option. The Mystery element in town with who is one is really fun to figure out when needed, and at times making their attire not quite look right can be amusing. The Achievement to marry one without knowing they are is also quite a challenge since you have to avoid making them overly happy or the glow gives them away. Yes you can do a memory wipe to help make that easier, but if you try to achieve without, makes for a fun task to accomplish honestly. Can't woo hoo your way to a marriage xD

Don't have enough TS3 experience to comment on those. I like the TS2 ones because they are straight-forward, part of the gang with none of the deception that TS4 ones have. 'Powers' are of no interest.

Sims 3

Sims 3 wins hands down. Ts4 has much better alien customization

I didn't play aliens in TS3, I didn't get around to it. I didn't even realize you could do that. lol Sims did get abducted until someone complained and they turned down that feature in TS3, too. I did like TS4's aliens much better (powers!) than TS2 which did nothing. If I could install TS3 in this pc (not enough SSD space) I would try them out though, since I really enjoyed the alien powers in TS4 til they nerfed them, too.