I haven't done too much comparing since returning to the darkroom recently (Takes a real commitment of time and materials to effectively test film/developer combos) so I'm using my old, established favorite of Tri-X in FG-7 diluted 1:15 in a 9% sodium sulfite solution. I've always been very happy with this combo.
Recently, I've been experimenting with Efke 50 and 100 in D-76 and although I haven't fully nailed down a solid speed/dev. time, I'm really impressed so far. It reminds me of, many years ago, discovering Seagull paper after using the Kodak papers of the time.