Growing up I always thought that the Arrow Head looked so cool, even though I felt Final was kind of an disapointmet after Delta showed what could be done with series. The ship designs is realy good though i think.
I felt the same about Final. Delta was superb after the 1st two levels (they were nice but seemed a bit generic to me), I`d happily buy an HD version if they made it.
Final tried to do too much, and the level design seemed really slack in how it had to accommodate all those different ship types. In Delta all 4 ships' (4th unlocked once completed) differences balanced well with the level designs, it felt like R-type but in 3d, which to me Final didn't at all.