Since weight is a criterion, you might look at the Advance (Hoyer), LikoLight and Molift Smart. But I think the Molift is the lightest of these. If you are looking for portability, the Diana Mini (Horcher) is another option. It would help to know why weight per se is a concern. The travel lifts separate into multiple parts for loading into a car, etc. There are also many threads on lifts over at the Rutgers SCI forum (the consensus there is avoiding Hoyer other than the Advance and having hit my head several times on a Hoyer, I can understand why). The MaxiTwin is another option, but the more compact version of it is not sold in the US.
Almost all the lifts have videos on YouTube -- something to check out.