I like all formats. Every game is different and demands adjustments of your strategy.
The slower the structure, the more
hands you will eventually play, so the game is much more like a cash game.
But when blinds go up fast, it means that you won't be able to wait for good spots only, eventually you will need to take risk in order to gain chips, and survive, so these formats typically have higher variance.
Nevertheless, even in fast structures, you should make correct decisions in order to succeed, its not ONLY about luck, that's why I like to play both, fast and slow tournaments.
At the end of the days, if I do not have much free time, but I really want to play, I will definitely go for hypers.