While I enjoy all the women who the MC has claimed as girlfriends/who are identified as LIs, my favorite is still Alison.
She is intelligent, loyal, family oriented (look at the sacrifices she was/is willing to make for Hannah), hardworking and, IMO, dedicated to the success of Team Fletcher.
Add to that - she's a beautiful redhead and for me - that seals the deal.
Needless to say, I am looking forward their date during the coming weekend.
As to the MC and sexy time with the ladies, I think it would be nice if he got to 69 with one of the current girlfriends or, even better, if his first time was with Sarah, helping to get her to let go of some of her body insecurities.
Cheers!!