I honestly think Federer-Djokovic rivalry is better than Sampras-Agassi
Sampras - Agassi actually contested a BUNCH of slam finals and Federer-Djokovic like.... one? Sampras- Agassi = a lot more way more dramatic matches. Sampras - Agassi = better contrasting styles, literally the opposites of one another. Sampras - Agassi = the biggest icons of the entire 90s, the same generation of one another, same country (United States), etc. Djokovic - Federer not the same generation, not dominant at the same time, etc.
Novak is obviously a great player now BUT he would have gotten dismantled if he had played in the same generation as Federer. frankly as far as the H2H and 'rivalry', Novak is very fortuante that Roger has bit his pride and decided to play long past his prime, something which helps skew the rivalry into looking favorable towards Djokovic. obviously Novak is going to win some matches when in his prime against 31 year old Roger Federer. I kept thinking to myself last World Tour Finals literally while the match was going on live, Djokovic is struggling to beat 31 year old Federer, and Federer is not playing anywhere near how he did in, say, 2005/6 or his prime
so there are quite a few reasons why I think that Agassi - Sampras are a better rivalry, primarily because they were in the same generation and as far as I am concerned at a more fascinating contrasting of styles
Sampras - Agassi is like watching two oranges who were harvested at the same time play together. Djokovic - Federer is like watching a fresh out of the oven loaf of bread face off against a stale bagette. and they're surprisingly close in flavors and outcomes of matches. which means a bad rivalrly IMO since 31 year old shouldn't be consistantly practically winning and losing back and forth with players dramatically younger and in their prime