1/4" Hook or skip tooth; 4 TPI is best all purpose, esp for cork birds. May want to go to 3/8 for wood bodies, but the 1/4 should be fine.
At any rate, it's the 4 TPI that's important - standard "weekend woodworker" blades with say 12 TPI will be useless.
Never have been big on dropping $30 and upward on a "Brand" name. Find a saw blade shop if you can and have them make 'em up for you @ $12 - $15 or so.