The Jurgens and Tomasi run felt like an odd mashup between the Triangle era (Jurgens book) and evocative of the Loeb era (Tomasi). Bendis' run so far feels more like the bronze age mixed with the supporting cast building of the early triangle era, with a touch of the rebirth era all filtered through Bendis' particular brand of writing.
But as Ascended said, all eras of Superman have felt different because you have different writers who each see The character differently and chose to expand on certain aspects and deemphasize others. The issue is when within an era there needs to be some modicum of internal consistency. The Triangle era did. The Loeb/Kelly run did. The Johns and Busiek era did. The New 52 often didn't and that was it's fatal flaw. The weakest eras have often suffered from a lack of consistency.