I think the Blue Boys are older, like Steph said, and that ones like these are newer, but I am not sure how much newer - I'm thinking later than 1980 though. Maybe @Jeff54 has an idea.
Kinda nondescript - not much to go on. I'd say Ravenswood on the second one though, maybe Heaton on the first, Champion on the third and Alley on the last one.
The left is a Peltier 6-ribbon Rainbo. It's hard to make out the seams on the right one but it doesn't immediately impress me as Peltier, maybe Akro - a couple of more views might help.
Nice Vitros, Dave - I don't think there is enough tan/brown on that first TriLite for an Aquamarine though. And I have seen a few Conquerors with a fair amount of chalk, it's pretty uncommon though . . .