yes nissan ones are best, even though people claim HT leads make a power diffrance they dont. unless the old ones are borke lol.....if you want to make the engine bay look abit better you could buy some magnecore ones
on a standard micra the difference is negligible so for reliability go for standard ones from nissan unless you want colour coding in the engine bay. I mean it cant hurt to have them(Y) but dont expect any noticible difference if thats the reason for swapping.