UrielDagda: The Dragonlance games were pretty difficult, with the draconians.. Gotta really watch out for the ones that explode when they die. Get a few of those too close up you got a wipe.
The Draconians I really liked to hate as enemies.
They were really tough, as in really tough in that times toughness scale but all of them had one hard side and manageable other sides. You really have to treat every battle with them in a special tactical way a lot more than against other enemies.
And some of them refuse to die harder than trolls. That's actually a lot more fun than it sounds because it spice up the battle/s greatly.
Draconians are great enemies to fight against in RPGs with old school difficulty if you ask me. :)