In reply to Si dH:
Out of those I'd go for either the Merrell Refuge, Solomon Booster or NF Hedgehog.
I've had/still have a pair of the Merrells, worn them pretty much every day for the past 6/7 months doing everything in them from walking to town, boulder hooping over the beach, working in a stables. They haven't leaked yet and I'm yet to give them a wash.
I really like the look of the Booster's and will be getting some in the next couple of weeks. They have a nice slim fitting design which I really like.
As for the Hedgehog's I like everything about them except for the rubbish colour of the sale ones. I do like the new NF Hedgehog Guide which have just come out, though again let down by the silly colours.
Hope that helps