I am switching to canon, Mainly because I want to buy a CANON full frame after 2 years and most of my friends use canon. But for the time before that I want to USE a mid range canon and enrich my lens collection.I have sold my Nikon d90 which I had used for 2 years.
Decisions that are made because of "peer group pressure" are universally bad decisions. The pressure isn't always overt but that you cite "most of my friends" obviously means that you feel like you need to conform.
Switching to Canon won't deliver you better pictures but it will mean you need to spend a whole lot of money that you wouldn't otherwise need to spend. Canon has nothing that will deliver better pictures than the recently released Nikon D7100.
To use the quote that police often use, "If all of your friends jumped off the cliff, would you want to jump off it too?"