To be fair they're fairly different producers, but I'd go for Calibre by a country mile.
D-Bridge's music doesn't really do anything for me atall. He seems to get a lot of love on the forums, and lot of his tracks have got a nice old-skool sound to them...however the 4 or so times I've seen him play out the dancefloor has emptied for his set. Even in sunny, relaxed Italy..
Of all the mixes on the Members Mixes page, there's 3 tracks credited to D Bridge, one of them's True Romance and the others were co produced with Break Fierce Nico & AI. Calibre has a fair few more tracks up there, and that speaks for itself.