Late or early orientation date?

I have been hearing that one can get better times or classes if one goes to an earlier orientation. Is this true?

I already have missed the first 4 orientation sessions and there are 13 in total.

My summer plans would be a lot better if I chose the last date, but I do not want to be stuck with bad classes.

IMO, attend as early as you can. You will have more options for classes/times/professor choice.