Okay, I know I'm about to up my "weirdness" factor a hundredfold (an amazing accomplishment to some

) but I actually DO find Garrus physically attractive. I don't know if it's in the conventional sense, such as when looking at an attractive (human) guy, but Garrus is from a species that is unique and aesthetically pleasing in its own way. They're strong, have a very masculine build, and are predatory (not in the freaky "omg hide your kids" way). I find that attractive...and it doesn't hurt that they're space raptors with an awesome culture, which is very cool.

Not to mention Garrus isn't sore on the eyes even compared to his own species.
But my attraction to Garrus has always been driven by the combination of looks, voice (omg, The Voice *drools*), competency/intellect, and personality. Were Garrus a real person (human or otherwise), I would be attracted to them on some level.
TLDR: Yes, I find Garrus to be very attractive.