I always used to prefer forward facing, left hand side. for some reason I like to see the people on the platforms.
But these days, I just prefer any single seat. So glad that GWR have put more of these in 1st Class. so much nicer to have a little section all to yourself, and good legroom too
Are the GWR single first class seats similar to those on VTEC? You mostly have to share a table with another single seat.