I have Five Ten Freeriders and Five Ten Freerider VXi's. I honestly bought the former dirt cheap just for casual wearing before I'd ever considered switching to flat pedals.
I got a set of Deity compound flats for $50, and found that the Freeriders really bit into them hard - really grippy. Fine for all instances except where my foot would come away from the pedal (drift attempt, or just plain stuff up) and I was trying to re-position it while trying to also pedal.
Also, on long days in the saddle, my feet would be more sore than my old Northwave clip-in MTB shoes.
Switched to Freerider VXi's, and they're better in both those areas: stiffer to hurt feet less on longer, pedally rides. Smoother sole under ball of feet for pedal re-positioning.
The only downside to the VXis is when you have to walk/carry bike up a wet slippery/muddy embankment. There's zero grip.
Once I was convinced flats was the way to go, I found Fire Eye compound pedals for the same price as the Deity pedals for my hardtail. The actual composite platform is identical - I'm convinced they come off the same production line. The Fire Eye's have one more pin centre fore & aft (4 more per pedal). Can't say I prefer one of the other. EDIT: The poodle has linked to these Fire Eyes below
I'd recommend the VXi's and my pedals. I'm sure more expensive pedals are better, but I've had zero problems with mine in over a year.