I will always consider T2 Cameron's best work. Aliens a close second.

T2 is such an improvement over the first one it's mind boggling. I mean, he took the initial core concept and just enhanced it on every level. The T-1000 is one of the most creative villains ever -- millions, trillions of units working in unison to form an nearly indestructible whole? Brilliant. The entire film is shot in a bluish hue to underscore that 'metallic feeling'. It's small details like that, and larger details like more refined, more epic action and the whimsical nature of fate that cement it as one of the all time greats. I love that film.

Titanic? LOL.