I've used both electric and propane grills. (Well, charcoal too for that matter. Too messy for traveling in the RV). The electrics work well - I still use the George Foreman - but do not get that grilled flavor you get from a gas grill.
We've always felt the Weber Q series to be the best, but I now have a Cuisinart table top grill.
It is the cutest little thing, legs fold up underneath and it carries like a suitcase. Has a sliding lock in front and a built in lighter. Cooks enough for two and works well for us. The set up and break down is so simple and easy - unfold the legs, slide open the lock, attach the propane bottle and you are up and running. It is very lightweight, small, and fits easily into the basement.