Penny C without a doubt. Holland genuinely is full of idiots who believe their place in society is determined by how much daddy earns, whereas despite Penny C being the same price, it's a much nicer atmosphere.
Penny C is 10 mins from town rather than 30 mins like Holland, even though it's about 2 mins extra to lectures, and if you're doing either business or anything that's part of the Humanities School (HUSS) then Penny C means you don't have to walk up the big hill to lectures and is actually closer than Holland.
Holland has wet rooms, Penny C has showers, and the balconies in Penny C are better than Hollands. Oh, and Holland has better views but Penny C has a nice view over a lawn and tennis courts which you can actually use, unlike Hollands valley view which is unreachable.
But wherever you go, don't mess with the fire extinguishers!!!