Jones defensive metrics blow every other outfileder out of the water. He is ahead in runs saved by
It's not like he is Omar Vizquel and couldn't hit at all. He still hit over 400 homeruns and drove in 1200 runs to go along with being the best statistical defensive CF of all time (by a good margin and even if you don't truly believe the advance statistics, it's hard to dismiss him as not being one of the best of his generation by the eye test. He may have fallen off a cliff in his las 4-5 seasons, but he still was the best CF for a decade.
I'm not saying he wasn't a very good player, even great at times, but he is not on a level with Mays, Schmidt, and Griffey
Mays speaks for himself, he is a top 3-5 player all time, if not top overal
Schmidt was a 3X MVP, 10X GG and 12X AS 106.8 WAR and 148 OPS+
Griffey 1X MVP 10X GG 13X AS 630 HR 83.8 WAR and 136 OPS+
Jones 1 MVP runner up 10X GG 5X AS 62.7 WAR 111 OPS+
I wouldn't be against him being in the HOF, but he would not be in the same conversation as Griffey/Schmidt/Mays in any way other than the random pairing of 10GG and 400 HR, which will likely find a new member in Arrenado in 3-4 years