I'm a relative newbie-did turning off and on since early teens, then got back into it , and especially pens, about a year ago, once the kids were grown. Sooooo-I sure don't have the expertise that some of the other posts talk about (skew experts in local clubs, etc.).
I have a Sorby oval skew and I like it. Actually, I have a whole set of Sorby's and I really like them all. The set didn't come with a flat scraper, so I bought a Benjamin's Best 3/4 flat scraper. I really like it too, though I would say it holds an edge for only about 3/4 of the time that the Sorby's do.
I wish we lived in the same area, I would just give you my Sorby skew for a week and let you play with it, to help you decide.
Good luck. I guess my final thoughts are that I don't think you can go too far wrong with a Sorby, as long as the price doesn't deter you. On the other hand, I bet a Benjamin's Best would work well too.
Roger
P.S. I wonder why the experts don't like oval skews?