Use both, actually the three, straights, Shavettes, and the Feather ac's. like all three types. Even the Parker clones that are delivered for under $5us.
Used a Parker clone on vacation every day for 2wks. Used it with a new Derby 1/2 blade each day. Great shaves.
Most of my straights are the 10-15$ eBay ones that I've 'fixed' up. More than once I've had to finish off a trail shave with a Shavette.