I have loved the last 20 years of Federer, Nadal and Djokovic. Tennis is my favorite sport easily, and we will never see what those three have done ever again. I actually want the new guys to take over for good and for Federer, Nadal and Djokovic to all end at 20 slams. Each of them in my opinion offers something to the GOAT debate and for what they did for the game of tennis globally.
To me it would be kind of cool to see them all finish with the same total. But realistically Djokovic will likely end with the most, and he's my least favorite of the three for a variety of reasons.