Comparing 3 autoflower strains

Hi all.... i need help with some info.... if you have grown anyone of these strains please describe it

http://www.cannabis-seeds-bank.co.u...asy-ryder-aka-lowryder-2-x-ak47/prod_442.html

http://www.cannabis-seeds-bank.co.u...h-ryder-autoflowering-feminized/prod_495.html

http://www.cannabis-seeds-bank.co.uk/lowryder-seeds/lowryder-diesel-ryder/prod_441.html

which is the smallest at sizes....
more potent...
fastest growing...
biggest yielder and so on

i just need some info... please comment