I run Notes 8.5.1, and it's a pile of poo. I don't care if it doesn't get hit by viruses, it doesn't do the job. Your immediate accusation of "fanboy" is way off the mark. I do like Outlook, FWIW, but I despise Notes for reasons that have nothing to do with a particular penchant for Microsoft software, rather to do with a craptacular UI, unreliability, slowness, and numerous "WTF?" moments in a given day. I have never used a piece of software that caused me such pure rage, and it's exacerbated by the fact that Notes fanboys such as yourself cannot fathom that anyone might not love their precious pile of flaming feces. In point of fact, I know that I cannot possibly reason with you or convince you that my perspective has any merit, because I have tried and tried to do so with Notes aficionados in the past, and two things are always clear: they are absolutely convinced their chosen product is the best in the world, and they have never really used any competing product, so they're not aware that the rest of the world has moved on in terms of usability, functionality, and aesthetics.
In short, there's one area where Outlook could use a minor improvement, which is security, and there are numerous areas where Notes could use major improvement. But go ahead and flame away . . . fanboy.