[Dave at Pelican Parts]

914: 25-35 MPG
911: 15-25 MPG
Bug: ~20 MPG?? (dunno...)

914: Valve adjust every 6K miles, 30-90 minutes shop rate
911: Valve adjust every 12K miles, 60-120 minutes shop rate
Bug: Valve adjust every 6K miles, ~30 minutes shop rate

914: 4 quart oil change every 3K miles
911: 9-12 quart oil change every 3K-6K miles
Bug: 3 quart oil change every 3K miles

914 piston & cylinder set: $500-$600 German OEM
911 piston & cylinder set: $1500-$2500 Germaan OEM
Bug motor, complete: ~$1200 from some sources

914: 76-95 HP (stock), incredible handling
911: 110-190 HP (69 T - 73 S, all stock), very credible handling
Bug: 36-~60 HP (stock), lackluster handling

914: Funky 1970s looks--it is very unique!
911: Classic shape, instantly recognizeable, very flowing but muscular
Bug: Severely cute, instantly recognizeable

Figure dependability is pretty similar between the three; they're all old and don't react well to "deferred maintenance".

I know which one I would get--but that's what I already have!!

--DD