i have just changed back to canon ,
i used to be with canon but changed a few years ago to nikon not ideal for wildlife but i got more than a fair few good shots ,my main gear being a d7000 d300s 300mmf4 1.4 and 1.7 tc,s this covered most eventualities ,but although good there were a few instances of the cameras etc playing up a bit and losing me shots at critical times ,come last year after a health scare i decided to sell both bodies and get a brand new all singing all dancing d7100 bad choice ,the first body i had played up from the start but i thought that was user error so stuck it out ,it drove me mad for 4 weeks and finally the menu system went do-lally and just refused to re-boot after 3000 or so shots ,took it back for a replacement body ,initially that was fine but at around 3000 shots and after 5 weeks that did exactly the same .this was the final straw and i decided it wasn't worth the hassle so i asked for and got a full refund from the retailer .funnily enough without the argument which i had been expecting .sold all my nikon gear a week later .
so here i am a few months later back on canon and enjoying it getting the photos i want with reliable gear ,i miss some functions of nikons ,but theres no perfect system out there .