My only complaint really about sports viewing, and HDTV in general, is that the Sony VPL-VW90ES could use more lumens. I don't like my sports in the dark, nor, for that matter, my Discovery HD type content. With a maximum of about 750 lumens there are plenty of less expensive projectors that are a lot brighter, in fact we consider 1000 lumens to be about average for a brightest mode.
My theater is nicely light controlled. I can have 6 lights on in the back of the room yet only a small amount makes it to the screen thanks to super dark walls and ceiling.
While more lumens are nice, the picture quality on sports was either good, or great. If you opt for maximum brightness, the color temp gets rather high, close to 9000K, but the picture still looks pretty good, but thin on red. If you can live without the exra 20% in brightness, though, the picture is gorgeous using the "best" mode (with color temp on Custom 4).
I watched a good bit of other HD content, even in the cooler mode, not bad.
Also of note, Sony offers CFI under the name of Motion Enhancer, to smooth out fast moving objects. I used it on the lowest setting for sports and found it fine. For movies, BTW, as expected, CFI turned film movies into a live digital video look, and though not as soap opera looking as some, it still is dramatically altering the original 24fps look and feel.