I detest Ubisoft. They used to make great games but their love of micro-transactions and some recent stuff releases have dropped them waayyyy down. Depending on how The Division goes, I may like them a bit more.
R* also has dropped in my mind recently, or rather, Take Two. Their cease and desist bullstuff, as OP mentioned, was a major richard move. Although it was probably in their right to do so as they could lose money, if people start creating massive mods like that, there is usually a reason for them doing so. I.e. we want to forget around online and try mods together without being banned. Their ridiculously high priced updates have also pissed me off, although haxors have solved that until recently. Seems like they've finally fixed their hacker problem, although peer-to-peer play is still stuff.
Edit: SE is amazing cuz JC3 :) such a fun game