Hmm, a tough one. But if I had to pick five herbivores, in no particular order, I think they'd probably be: Styracosaurus, Brachiosaurus, Edmontosaurus, Pachycephalosaurus, and Euoplocephalus.
And on the carnivore side in no particular order, my top five would be: Suchomimus, Metriacanthosaurus, and Herrerasaurus. My favourite dinosaur family is the tyrannosauridae, so the Tyrannosaurus is another, but the Albertosaurus favourite out of them of all as it's my favourite dinosaur.