Question on a few strains

Just looking for input from those that have tried the following strains, just trying to get a feel for potency. Hehe of you've tried them all, rate em in order of potency! Otherwise just looking for feedback and smoke reports.

Ocean Kush

Fire OG

Cherry Pie

Harelquin

Northern lights/white widow combo. Sometimes referred to as Chrystal

I would like to know where you can get cherry pie! I've had multiple people tell me it was their favorite strain EVER! If you find it point me in the right direction.