My research has lead me to this info through reports:
White widow was originally created by Greenhouse seeds. Wheather it was done by an individual or a team all comes down to how people want to present it for their personal interests imo.. I don't trust half the reports I see (yeah im a real conspiracy theorist..). So anyway, the creator of this seed (or a part of the team) has hopped over to Mr nice and released an original (according to them the closest thing to the 80's strain around today) under the name "black widow".. They also release rumours that Greenhouse has lost the original genetics. Basicaly I take nothing of that for fact, but i have reason to beleive that both strains are pretty good. I would like to hear some reports about them.. Apparently there are like 10 seedbanks giving their "own WW edition". So what do you guys know about all this shit? At the end of the day there is no reason to go for the original if there is a better close version of it I have no problem with taking the fruit our times have to give.. Things go shitty when people idealize the past and try to get caught up in it i think.
Also about NL's. I know the 1st version is the most couch locking indica and the 5th one is a more yielding version. I am pretty confused when it comes to looking for which one to get. Also some good amount of statements show that nirvana's NL is more indica and faster to finish vegging and flowering, while Mr. Nice's NL is a more sativa dominant (compared to nirvana's) with much higher yields and less of a couch lock.
Thats all i have got to offer to the topic (other than starting it)