Rate your faves based on difficulty from "Walk in the park" to "Lets play the whole game in slow motion"

This should be interesting as we all have our varying perceptions. I'm quite new to the arcade version of this genre and generally played the much older console versions which is what I'd class as about a 3/10 on that scale.

A lot of the stuff you guys recommended in the other thread is 10/10 intensity titles that seem to be aimed at shmup pros. In my scale Gradius III (SNES) comes in at 6/10 while Star Paroider (PCE) is absolutely perfect and fun learning curve with 2.5/10.