Please don't just throw around that greatest ever title, even if only at one position... The fact is if Lebron retired today he'd be remembered as what could have been, the stats/accomplishments he's posted so far are great for 8 seasons, but nowhere close to "Greatest Ever". And in my personal opinion I'd currently rate him #6 on the alltime SF list. Behind Bird, Dr.J, Baylor, Pippen, and Hondo.
Current Top 10(Top 10 as of today, not "greatness)
1. Lebron
2. Howard
3. Wade
4. Dirk
5. CP3
6. Kobe
7. Rose
8. Durant
9. Dwill
10. Gasol