I don't like coloured towels as they are less inclined to use bleach or hot water when they wash them properly, they will not last very long this way. The towels will look old after a week.
White is my preference as they can take the most sanitation. The cleaner they are, the better they look.
If they use bleach, I hope they use the unscented kind. Jizz sometimes smell like bleach and it would be a turn off if I caught whiff of anything. Don't ask how I know what my jizz smell like I had a wierd girlfriend that kept bringing that stuff up to my nose. A clean smelling towel is important. A little bounce goes a long way.
Actually sometimes I feel like bringing my own oil, bar of soap, towel and bedsheet since I'm not used to that liquid soap. Is there an MP that rents lockers? Wash my stuff and keep it safe until I return?
Don't think to much about this. It'll drive you nuts after a while. It's starting to drive me nuts already.