I'd echo the thought that I don't think you could make a really strong case these days with just a few photos or video clips. You certainly can't find any that prove "GENUINE ALIENS!" If a picture is worth a thousand words than to me it seems that the exact opposite is true of ufo material. You almost need a thousand words of context to know anything about the photo. To really examine a significant mass of good ufo cases and understand all the contextual details I think you would need like a college semester class as an introduction. That being said:
Off the top of my head I think the
1994 Nellis video makes a compelling case that somebody somewhere has some very unusual technology. I'm not an expert image analyst but nothing about that video strikes me as fabrication. The radio chatter strikes me as genuine and unrehearsed and it seems
proven beyond a reasonable doubt that it was actually filmed inside the controlled airspace of Nellis. If it is ours than whatever it was absolutely confounded the people looking at it, presumably professional aircraft trackers. If it is an elaborate hoax it is definitely the most sophisticated execution I have ever seen on a number of levels. To my mind this video only has three possible explanations, any of which should merit serious attention:
1. Very unusual military tech being demonstrated to some unsuspecting military/contractor people.
2. Intensely elaborate and expensive hoax perpetrated by people who apparently have access to Nellis/Area 51 test sites.
3. Something that doesn't belong to us.
The
Belgian Black Triangle case is very good and you can find the video of the Air Force press conference showing the radar tapes from the F-16s they sent chasing after
it. Taken together with the
you are nuts if you don't think something very unusual is going on.
The old documentary
UFOs: It Has Begun has a nice interview with the crew of the Army helicopter from the 1973 incident around Mansfield, OH. It's generally considered one of the best cases on record and I believe the 1998 Sturrock workshop reviewed the case in detail.
The documentary
Out Of The Blue is about the best you are going to get for a single film although I haven't seen Paul Kimball's Best Evidence yet. Richard Haines'
Pilot Sightings video is nothing but back to back audio recordings of pilot/tower conversations during ufo encounters.
The UFO thing is pretty unique in that any assumption you care to make about it deserves serious consideration. If they are hoaxes you have a unique and sophisticated 50+ year mass hoax involving tens of thousands of people. If they are misidentification then it's fascinating how so many tens of thousands of otherwise reliable people see flying saucers and get massively freaked out about it. If it is a natural phenomena it is fascinating how most scientists are uninterested in studying it. If they are delusions I would hope we would be seriously considering how pilots have these delusions on such a regular basis. If it is deception then I want to know where the hundreds of senior citizens that used to be well placed military and government types are getting these bizarre and elaborate stories from. Taken only as a social phenomenon it should be enormously interesting to anyone who actually looks at it.
The other possibilities I hope wouldn't need any explanation for why they deserve serious consideration.