I've gone thru a whole gamut of DLP, LCD and LCoS projectors, from 480p days to 720 to 1080. Among projectors, I've had BenQ, Optoma, Infocus, Mitubishi, Panny, Sanyo, Sony and JVC.
Of all of them, I was happiest with JVC RS1, RS2 and the Sony HW10 & HW15, all LCoS. The most disappointing was the Sanyo z4000 in its pedestrian contrast. The Mitus hc3800 threw a great picture (but so so contrast) but I've to returned it 3x for repair, sort of took the fun out.
My backup Ae900 has a small dust blob, no big deal. Bottom line, I would prefer the RS45 over the ae7000, especially they both have the same MSRP, a no brainer.
BTW, I do not care or have the need for 3D. Movie viewing is my top choice or bias.
Lastly, I found LCD contrast specs are meaningless, i.e., Epson, Panny and Sanyo.
Good luck to all.