white widdow is not even close to the most potent plant known...it's not even in the top 50...but as other dude just said i guess it is all up to the smoker's perticular experiance...but when i say potent i mean lab tested for canainoids, white widow is 12% thc, 1.4% cbd and cbn .6%... at least that is for the original WW from Greenhouse seeds...there are alot of imitations.
the AK on the other hand has been measured in the 20% thc range, not sure about the other cannabinoids, but the White Russian was measured at 22% or even more THC...so according to lab annalisys out of the 3 white russian is the most potent...but as dude said it could effect everyone differently.
as for my journal, yes that is white russian, and no i havn't harvested yet, about 2 weeks left. it is amazing weed...but you got to be carefull about over feeding early on. i'll be updating the journal soon so keep an eye out if you want to see the end.
-Cult