I have four on hand when I'm turning - 3/8 and 1/2 glasers, the 5/8 ellsworth, and the 3/4 thompson. the Glasers are a new addition and I'm still deciding if I'm going to modify their grind a bit. As far as steel and handling goes, they're wonderful. So are the others for that matter.
I prefer a v fingernail with long swept sides - this makes it easy to switch from a rough cut to a 45 degree cut to a shear cut to a shear scrape without a lot of fiddling.