Clever mike, the word enigmatic has been used quite abit to describe Nonu but there's probably nothing i can say to change your views on Nonu as Saffas are generally hostile towards him because he is a very dangerous and physical player.
But Bismark Du plessisis is also a very physical player and he is hero worshipped so there is some irony there don't you think? Seems you adore firey players as long as they're in your own team . ( Duplessis is more hot air than fire though don't you think.)
As far as Nonu's performance at Ellis Park went i don't think you're giving enough credit to De Villiers for his evasive skills. The same way Barret has'nt been recognised for his talents by South Africans (speaking again in the general terms you like.)
That seems to be the modus operandi i've noticed with your posters is to find a skapegoat for missed tackles instead of saying what an Awesome try that was, give that man a beer.
But if you read some of the match reviews of that epic game at Ellis Park they are giving Nonu credit as one of the Awesome leaders out there on that killing ground. So petty to single him out for one tackle he missed IMO.
Looking though at some of the reasons why Nonu will be a different player this year.
Nonus motivation this year will be different than last . Far more polynesians in the Blues team compared to the Highlanders so a totally different culture and he will be eager to earn their respect. Unless you understand the importance of aiga ( family) to Samoan cultural identity you may struggle to understand the massive difference this will make.
The imminent return of SBW to NZ rugby will also be a motivating factor . SBW 's will be taking his spot so i doubt Nonu will be happy about SBW being the centre (of attention) and stealing all the limelight so he will be trying harder than ever to impress everyone including JK , AB selectors, and rich overseas clubs perhaps.
...and i've already mentioned that i think Nonu has matured as a player and JK will have matured as a coach so hopefully their communication skills have improved and they won't be at loggerheads as before.
But like i said Nonu will have players of Awesome quality inside and outside of him.
With other dangerous players the likes of Piutau, Halai and Saili lurking in the backline and another firey player inside him in Benji Marshall , stadiums may need the fire brigade on their speed dial to douse the flames coming off this Blues side.