Yeah, it is debatable. Jones' had little competiton in his era, golf just wasn't as popular then. Nelson benefitted from playing in the WWII era, his huge season was 1945. Hogan IMO was possibly the best claimant for the GOAT title besides Tiger.
How is it debatable? You can't argue that the level of competition back in the days, was anywhere close of where it is today... In 2006, Tiger won 7 tournaments in a row (in 2000 he won 6 in row...) and this isn’t tennis, where the best always win. It’s super rare that someone wins two tournaments in a row. And like Fogie said, Byron Nelson’s record from 1945 was highly influenced by the absence of many top players. So considering that Tiger played in the era of Mickelson, Vijay, Mcllroy, Garcia, Adam Scott, Leonard, Rose, Duval & Els, here are some of his achievements during this period:
- Woods has won 79 official PGA Tour events, second only to Sam Snead, and six ahead of Jack Nicklaus with 73 wins.
- Woods has won 14 majors, second all time, behind Jack Nicklaus.
- Woods is 14–1 when going into the final round of a major with at least a share of the lead.
- Woods scoring average in 2000 is the lowest in PGA Tour history, both adjusted, 67.79, and unadjusted, 68.17.
- Woods has the lowest career scoring average in PGA Tour history.
- Woods has amassed the most career earnings of any player in PGA Tour history (even after inflation is considered).
- Woods is one of five players (along with Gene Sarazen, Ben Hogan, Jack Nicklaus, and Gary Player) to have won all four professional major championships in his career, known as the Career Grand Slam, and was the youngest to do so.
- Woods is the only player to have won all four professional major championships in a row, accomplishing the feat in the 2000–2001 seasons. This feat became known as the "Tiger Slam".
- Woods set the all-time record for most consecutive cuts made, with 142. The streak started in 1998, he set the record at the 2003 Tour Championship with 114 (passing Byron Nelson's previous record of 113 and Jack Nicklaus at 105) and extended this mark to 142 before it ended on May 13, 2005 at the EDS Byron Nelson Championship. Many consider this to be one of the most remarkable golf accomplishments of all time, given the margin by which he broke the old record and given that during the streak, the next longest streak by any other player was usually only in the 10s or 20s. It should be noted that when Byron Nelson played far fewer players made the cut in a given event.
- Woods has won a record 27.2% (79 out of 290) of his professional starts on the PGA Tour.
- Woods is the only golfer to have won the U.S. Amateur three consecutive times (1994–96).
IMO there is no way you could argue against Tiger being the best golfer of all time. Even if you only count what he has done up until now he the best ever.
And how has Jack not been mentioned in this discussion?