I have a few handle-less (neck) knives, and the Scrapivore is the only one I've ever sold. The pry end just makes it a little uncomfortable, as it digs into your palm. I have small hands, so I imagine that occurs for everyone. There have been a number of complaints I've read on that.
The Swamp Warden is probably my favorite. They get put up on the Exchange pretty regularly, so you should be able to get one. The Izula is great (I have two Izulas and an Izula 2), but I like the handle shape of the Swamp Warden a bit better and like 52100 over 1095. The Izula is a much better bargain when you factor in the cost of a sheath for the Swamp Warden, though.
So of the two given knives, I'd go with an Izula. Outside those, the Swamp Warden would be my choice if money isn't a primary factor.