[mshac]

I'll start:

Tomahawk (105 knots for 6 gph)
C-150J - (95 knots for 5 gph)
Geronimo (1958 Apache with lipstick) 135 knots for 16 gph
Twin Bonanza J50: 1961 Supercharged - (34 GPH for 165 knots), unless very high (low flight levels), which you could see close to 200 knots - but you better have O2!
E55 Baron (great airplane, 180 knots at 8k, 28 GPH)
C172P (can't beat it for ease of flight - 110 knots for 8.5 gph) Had it on lease-back at a flight school and it was flown constantly.
58 Baron (Wife liked the club seating, had 310 RAM engines, still 185 knot airplane @ 32 gph)
C310F (175 Knot airplane, but would do it on 22 gph)
F35 Bonanza (140 knots for 12.5 gph) Sweet flying airplane.

You don't have to do the fuel thing, but I thought it was interesting.