I've got to link this 5-part article (sort of my bible for SNES shmups, even if I don't always share his opinions):
http://www.socksmakepeoplesexy.net/inde ... sshooter01
Too bad his image or video links that accompany those brief reviews are not current or working (his Genesis ones are), but it's an awesome site besides.
Also, due to Divine Sealing (for Genesis) and possibly language, this sight is probably NSFW.