My favourites were:
Monsters in my Pocket (whatever became of them?!?)
Transformers (1980's style)
Micro Machines (used to spend hours playing with this ship which folded out into a Micro City :-)
Marbles
Matchbox cars - used to love lining them up
Lego
I used to enjoy building up vast Lego constructs taking several days to do them - I'd then use them in a game with toys like the Monsters in my Pocket, Matchbox cars and marbles bringing the whole lot to a crumbled-up wreck at the end a couple of hours later. Then I'd start to rebuild. Oh such days! Such fun!
As I grew older I used bigger (and more powerful) figures in my games leaving my Lego men in ruins much sooner.