I would recommend the Henle Urtext Edition. It has, not only a text that is completely original to the composer's intentions, but also Liszt's own fingerings that are interesting. I can hardly believe that there are errors in that edition. But Sauer's edition published by Edition Peters is also something (they are free on IMSLP). Sauer was a pupil of Liszt and it has more "general" fingerings (Liszt's fingerings can sometimes be strange to people that have a different technique than Liszt).