I think it depends on the storyline/wrestlers involved. Highspot wrestlers do better in escape rules only while big brawlers tend to do better in the pinfall/submission matches. Hell, I think cage matches themselves should be escape only just because they have the HIAC for pinfall/submission stips(sure, people get out, but that has not happened lately).
And anyway, how often is a cage used as a feud ender anyway? I remember E&C and the Hardys having a nice one back during their big feud when E&C were doing everything they possibly could to get out of wrestling the Hardys. ("Yeah, Genital Warts RULE!")