do follow is good for backlink, and no follow is good also, expecially for human traiffic so i will both are good, but dofollow is count towards your gaining page rank.
Dofollow is good for google. Nofollow is good for everybody else. people will come from nofollow links also. I think MSn and yahoo are ok with nofollow comments. So Basically use it more often. Maybe I am a n00b, i dont know much, reading and posting.
they both have different work they do, do follow are good for backlink then result to pr, but some ppl forgot that you can get alot of traffic through no follow links too. knowing the difference is good, if im gonna get alot of traffic for putting my link on a site which is no follow, then i go for it.
If all your links could be dofollow, the better you. nofollow should just be accepted as the very last resort.
There is no difference at al, in my view. because all of my backlinks are from no-follow (blogspot) blogs. But it have got PR05 within few time.
as a blogger I prefer no follow at commenting section in my blog, but while working as SEO obviously looking only for do follow link.
Do follow for link juice from a backlink, nofollow on advertising backlinks, and dofollow on outbound related links, along with nofollow on outgoing non-important links
dofollow = nofollow, who dofollow link is indexing on google and nofollow not. If all internet have nofollow, google not curectly working.