Friedman has always been a lecturer, first and foremost. I highly suggest listening to the Xmas episode of BoA : Audio where we talk about his "early years". I agree that if you listen to a lot of Friedman, you'll hear a lot of stuff for the 2nd, 3rd, etc. time. But, considering he gives countless interviews a year, it's to be expected he'll have his set "routines". It's the job of the interviewer to (a) know those routines and avoid getting into them and (b) generate new, different and/or fresh material from him. (I can only hope I succeed w. the annual X-mas specials).Original here (go to the "ufology" section, and then the "Stanton Friedman" thread).
It's easy to look back now and consider him a great "researcher", because Roswell and MJ-12 got so huge. But he sort of lucked into Roswell and never knew it would become a cultural institution that it ended up being and the MJ-12 documents remain one of Ufology's more dubious stories, despite their fame.
I haven't heard him asked about alternative dimension hypothesis. As a matter of fact, I can't recall anyone really asking him his thoughts on all the various other theories. If you know of an interview, let me know, I'm sure it would be intersting to hear. I'll also keep that line of questioning in mind for next year's Xmas special.
I'll agree w. Paul Kimball in that Friedman will be (or at least should be) remembered by history as the great popularizer of the UFO phenomenon. By sheer longevity and dilligence, he's planted the UFO seed in the minds of countless people.