If you are really, seriously considering the RS1, don't even bother seeing the others. If you are still trying to convince yourself that you will be happy with a lesser cost alternative than go with an LCD. I've been down this road at least 4 times and lcd just doesn't get it, you can convince yourself that it does, but it doesn't.
I have a Z5 now had a Panasonic Ae1000 for a week, have had dlp and other lcos. Lcos wins, without question, except ansi, but is the most comfortable-watchable.
Can't wait till the RS2 or 1 is readily available.
LCD will just be a stop for you, trust me.