What EP should I uninstall?

I currently have 6 EPS, that includes Sims 3 University.
but since having that 6, my game always lags. And it's like it keeps telling me to uninstall a EP
I can't actually choose what I should remove because of the benefits I keep on thinking

Ambitions- I like it because of the jobs, but I can't mostly use the interior design and the fashion design because it always crashes my game. the jobs I only use in this EP is investigator, fire fighter and doctor.

Generations- well of course the fact that it's a must when playing legacy (I don't know if it's only me )

Late Night- very useful! the clothes, bars and musical instruments. I don't want this EP to be gone in my game

Supernatural - I like playing being a supernatural especially being a witch/vampire and Bonehilda is very useful for me xD

Seasons - one of the EP I've been waiting for XD I don't want to remove this

University- LOL XD do i have to explain why I don't want this in my game? XD This EP rocks! xD


Yeah.... This is the reason why I can't make up my mind =___= plus, I'm a big fan of The Sims. I like all the EPS but I really have to choose
and sorry for my bad english xD

Ambitions I think is my least favourite, not a fan of Showtime either.