Travel in Israel

I'm planning my first Israel trip later this year, and wonder if anyone here has any tips. I'll go for a couple of weeks, mostly in Jerusalem with probably a couple of days in Tel Aviv and in Haifa. It's an academic trip rather than tourism, but there'll be time for sightseeing and obviously eating. Does anyone here have advice on what are good neighborhoods to stay in Jerusalem? I'll want relatively simple access to the Hebrew University Safra campus, that's my only constraint.

well I'm gonna try this again, since I've now booked my trip for the end of next month, for a couple of weeks. I am indeed staying near the Hebrew University Safra campus, as I indicated before. while I'm there chiefly for scholarly purposes, I'll want to look around and get a sense of the town. does anyone here have any thoughts on things to see/do?