It goes along with this thread, which is about Bioware "dying" or losing their place as the solid goto WRPG developer.
Sure BioWare has lost some luster but lets not get crazy and overstate their stature to begin with. I think the bolded might be a little insular, then again we are on the BSN lol, and it would be better to describe their stature as a prominent WRPG developer, saying that they were the goto WRPG developer might be going a little too far and ignoring some other studios.
KoTOR was a solid game but bested by Obsidian's rushed effort. Jade Empire was considered a disappointment which I can understand and it underperformed financially. Their next game ME1, while successful, was very rough and lacked direction. DA:O was a good game but had its own issues and the sheer banality of the premise and setting just screams mediocrity. ME2 established an identity for the series and was a well-deserved hit. All things considered, their record is pretty average as a whole and strongly benefits from that one game.
As for competitors, talking sales on the OG Xbox and 360, Lionhead's RPG Fable (lol) was competitive with or did better than BioWare's games.
Deus Ex: Human Revolution and Fallout: New Vegas both sold well (better than some BW games) and are arguably better RPGs than BioWare's seventh generation output.
On PC we had Obsidian's NWN2 and its well regarded expansion Mask of the Betrayer as well as the first two Witcher games and other European RPGs.
If you were a console gamer you wouldn't have access to some of that but a lot is still multiplat such as the 800 pound gorilla...
Based on sales? I guess Skyrim really is the best RPG of all time.
Bethesda which of course still reigns as WRPG king for better or worse.