GoldenEye, with Banjo in an honourable second place.

Goldeneye the best followed by banjo kazooie then perfect dark

Banjo Kazooie, anything else is wrong.

Voted Banjo Kazooie.
Special mention to Jet Force Gemini though, it's held up terribly but the XBO version is amazing. Highly underrated game.

I'm going to have to say Conker's Bad Fur Day. It's a fun game and there's nothing else like it at all. Not to mention something like it will never be possible in today's politically correct gaming world.

I have the fondest memories of either Donkey Kong Country or Goldeneye. Although the latter hasn't necessarily aged that well in certain aspects, at the time it was absolutely amazing. I should also mention Blast Corps, since that game never seems to get the recognition it deserves. Easily one of Rare's best games, but it's often forgotten when talking about their classics from the 90's.

People cant make up their mind :P

Tells you something about how good Rare, used to be at makeing games.

Donkey Kong Country 2.

Besides having a great overall presentation that holds up to this day, it is a serious contender for best platformer on the SNES (a system with lots of great platformers). Tight controls (whereas many Rare games feel somewhat 'loose' to me), good and fair challenge (with an excellent curve), tons of secrets to find, decent variety of stages even within 'worlds,' and both the quality of writing and the overall creativity of the project is amazing. Easily Rares' best sequel in terms of improvement over the original.

Jet Force Gemini because of it's spectacular atmosphere, fantastic gunplay and brilliant levels.

At the time of release, I'd say Perfect Dark. It hasn't aged all that great though, so I'd say the timeless classic DKC 2 is their masterpiece.