What's your least favorite expansion pack?

If I had to choose, I would pick High School Years and University, mainly because of disappointment in the way gameplay works. I loved Uni in the previous games as I could put a group into dorms and play them all through together. I miss that. I don't use mods and know you can work around it by living off-campus, but I want them all to complete their graduations together and you can't do that. High School is also disappointing with the way the gameplay is in the school day. I did build my own and can enjoy that. I wanted the ability to have body hair, so was happy we got that, but the default in CAS really should have been no body hair or growth unless we wanted it. I expect bugs, as there always are some in the games (also in the older sims games). They usually do fix them, so I try to be patient and wait for the fixes. But with the new technology I would hope that bugs would become less of an issue/problem. I do love playing my sims, so I will continue to play and deal with the issues as they come. I have the For Rent, but haven't really played it yet, partly due to lack of time but also because of bugs I saw on videos and that others have mentioned here. I will wait to change my rentals over to the new when the bugs are fixed. So back to my favorite gameplay, my haunted farm! Hoping to find time to play between my holiday preparations so I can have my sims enjoy the holidays with their family, specters and ghosts! My sims really love their farm life!