SNAKE was intended as armor, but included a "stand" for using it without a figure. The cartoon used them as robots.
1. Cobra Officer
2. Cobra Commander
3. Cobra Trooper
4. Major Bludd
5. Zartan
That's not really a top 5, but my first five Cobra figures. I didn't get Destro until 1985. My brother was the bigger fan until he out grew them in late 1986.