Gotta go with the hyperion mission, it was pretty fun warping around the minefield. Sadly other than that and the last mission with the primal zerg planet where you gotta kill the ancient primal the other missions just seem really forgettable.
I had a ton of fun with the campaign but there was too many "kill x before it reaches point z missions". Especially towards the end of the campaign.
Would kind of liked a few more Warcraft 3 Frozen Throne orc style missions near the end of the game.