Hello. There's a possibility that I might have to fly from Chicago to Tel Aviv (I don't know exactly when yet) and I have a couple of questions. First, are there any airlines that offer true "premium economy" service (more than just extra legroom)? And in the event that there are but I can't afford them, who offers the best standard economy experience?

Finally, on the off chance that I can upgrade to business class with miles, which Star Alliance partners would you recommend? (I hesitate to fly United itself, since I've heard from numerous sources that domestic airlines aren't the best option for flying overseas.)

Thanks in advance!