this is so great ! <| sep |> Yes , they can . The new gen 3 A 19 s also have ' richer colours '.<| sep |> By matchwin %, Del Potro at a glance seems to be in a more elite range , 71 % vs 65 %. It ' s often interesting but definitely not an endall stat , see Wawrinka who sits at 63 % with 3 slamsIn addition to the title count edge you mentioned , Del Potro has been a finalist in both the WTFs and Olympics for whatever those are worth , but ili hasn ' t played the semis of either . ili has played and won 1 Masters final , Del Potro has played and lost 3 finals against Murray , Nadal , Djokovic , all went 3 sets but still , gotta win them . Also slightly higher peak rank 4 vs 6 . Del Potro also has generally better H 2 Hs against the Big Four , suggesting he ' s more effective when it comes to the task of beating the best . Del Potro , iliv . Federer 515 , 16 v . Nadal 58 , 13 v . Djokovic 411 , 114 v . Murray 36 , 312 Gamewise ili is perhaps more wellrounded clean off both sides , but Del Potro has a bigger weapon that he can centre his game around . Assuming both of them stay healthy and in the game a similar amount of time , I ' d be inclined give the edge to Del Potro for likelihood of accomplishing more , in spite of his current backhand liability . But Del Potro also probably has a higher chance of not staying healthy , so factoring that in makes it a pretty hard call and maybe ili edges forward .