The top two are favourite for spoon carving which I've been doing for quite a while now and . . .
they take and hold a really good edge.
The thing about a really sharp tool is that it imparts its sharpeness to the wood that it cuts.
I have a Power Strop which came from Tilgear - I use it in the electric drill held in the vice - apply some white stick and you get those mirror- finish bevel edges. Give the edge a touch up every so often. Save on abrasives and dust.
We'll be demonstrating at Highgate Wood near Muswell Hill this weekend coming. Hope the weather holds as last year at this time we froze and Vanessa got a chilblain !