I really hate the look of the winged ones. They nest near my patio doors every year and it's gross. They come inside and sit on the window. They look dirty somehow. Not ordinary ants...they look ok...it's the wingy buggers that get to me.
We used to have ants in the garden, they don't seem to be there now for some reason. My exp's mum bought me some ant killer after I mentioned them to her, I didn't say that I wanted to get rid of them or anything, but for some reason I suppose she thought that was what you do with ants. I never used it on them though. I'm not a fan of killing things just for the sake of it.
We also have ants who live on the small sycamore tree and they 'farm' the aphids. They clip the wings off them and then guard them. If you go near the aphids, the ants try to attack you. I think the ants gather some sort of discharge that the aphids produce. In turn, I suppose the aphids get protection from predators.