I would do stainless or brushed nickel. White with your colors would call too much attention to the air switch, and could stain or discolor over time. Or you could do what we did and select a batch disposal, which has the "switch" in the stopper. Nothing else to match, buy, & put a hole in your countertop. We have the Insinkerator Evolution in both our main cleanup sink & island prep sink. Its stopper is stainless & has three positions: pushed down to hold water, set with a gap to let water & small bits drain, or you give it a quarter turn either way to run the disposal. We also park the stopper on the sink grid or on the ledge just above the drain. There's no gunky flap around the drain to mess with either.

I'll try to figure out exactly what I've got today. Something else to consider if wooden countertops are in the idea bucket - - when your hands are wet, you'll transfer moisture to the handles (if any) and the countertop area unless you dry your hands before touching the handles. That'll be a habit everyone in your house will need to possibly do. I used to have butcher block countertops in some places. They were not very forgiving and, once, the wood did catch fire in a freak accident. My old faucet did have a pull out sprayer. The part on it that wore out first (at not an old age) was the button controls that had a rubber-like substrate with the buttons. The circular buttons developed cracks in the rubber around the buttons at about 5-6 years old. I'll look into the aerator issue - whether I have a built in one- and whether or not my faucet is high or low flow. There is no secondary aerator attached to the end - - those are kinda ugly IMHO. I am also no curious as to whether or not mine is lead free. My current faucet flow lands at the rim of the drain, if that helps. I'll try to photograph it later. If the faucet were farther forward, more of the splashiness would come on me than it now does. When my oldest is home this week-end from college, I'll see if she could video the whole thing.

I'm another who doesn't understand what the problem is. We put our airswitches in just about the same location and find it very convenient. I sometimes turn the water on just before running the GD and usually turn the water off right after turning the GD off so it is convenient to have them close to each other. Occasionally some water drips on the air switch but that's okay - it either air drys or is dried off when I wipe the counter. My hand usually isn't so wet as to leave a whole lot of water. If it was, I would have to wipe the counter anyway. By the way, even if the airswitch isn't by the faucet, it will sometimes get wet because of water splashing when spraying something in the sink. What problem do you think the water is going to cause by being on the air switch that it won't cause by being on the counter? If your water is hard and leaves water stains it will do that to the counter too. In that case, it might be best to turn the handle to the front to keep the drips in the sink. Or you might try it this way for a bit to see if you like it after all. You can always change the way the faucet handle faces later. Since many people like their switch in that position, I don't think you can fault your installers. If you had a strong preference for layout, you should have been there or left detailed instructions. Delays put our granite install when I was going to be away on a business trip and even though we had discussed things and mocked-up the accessory layouts, my DH wouldn't let them drill the holes with me away. They came back so we could both be there and we could make in case last minute tweaks to the layout were needed.

I'm right handed and I'd rather have the faucet on the left. I can reach across with either hand to turn it on, but I will be working mostly with my right hand, so I want the room to the center and right of the sink to work -- not bumping dishes and pans against the right side. Do stand at the counter and go through the motions of rinsing, washing, filling and see what is comfortable to you. If in doubt, go to a friends house and try you thoughts under running water -- your bath tub if you have to. Also, do you have the pulldown version of that faucet? If not, I would suggest you exchange it for one that is. You are going to need the reach to the other side with a side mounted faucet. Even if you do all your washing under the stream, rinsing your sink will be a lot more work without it and you will do it often enough and over a long enough period to wish you'd made it easier.