Whose skew is immaterial (IMO)!
Get a 3/4" or larger to start---I prefer oval, but suit yourself.
IF you are turning down a square blank, the heavier the skew, the less vibration you encounter and, therefore, the easier it is. If you are using only on round pieces, then a smaller skew is not too bad.
A skew "catches" when both ends of the tool touch the blank at the same time, so, logically the farther apart the two ends of the blade are, the less chance you will catch. So, a quarter inch is harder to control than a one inch.
I use "Benjamin's Best" from Penn State, their 3/4" oval---they are cheap, so I have several.
I also have two Sorbys---they are a little nicer to use, but I feel I have to be careful with them--at nearly $100 a piece, I am more comfortable with cheap.
YMMV!!!! and probably so will lots of other people's!!
Ed