What's your favourite ability combo?

[Jimangi]

I haven't tried everything yet but two stand out.

I for one can't get enough of the grappling hook. It's the perfect movement ability. The range is very generous so it can take you further than most abilities, the dash and the teleport especially come to mind. You can vary the amount of distance you travel from the same grapple point by holding the button for a longer or shorter amount of time. It not only preserves momentum but it can increase momentum if you're not fast already so it's great for getting through fast as well as for quickly changing direction. The cooldown is very generous. The teleport, which in my mind is far less versatile, has too restrictive a cooldown for what you gain, as do the jetpack and air dash. Because the range is so high you can use the hook on the easy stretches to get some extra airtime or some cheeky truck jumps off a truck above you. It also opens up new options like this pipe grab at the start:
https://www.youtube.com/watch?v=0FaRpQEhA6w&feature=youtu.be

As for the utility ability I don't have so clear a favourite. The benefits of epic mode are obvious but it feels a little cheap. On lots of the levels you can just fall and hold the button down. I fear it will distort the leaderboards so perhaps you should be able to toggle those by abilities used. Ones like the truckspawner and backtruck are fun and are great on particular levels but for sheer versitility of use I like slow time. You can take more risks with that as a safety net. It's also good with the grappling hook because you can aim precisely while on the move.

What about you guys? Can anyone redeem the jetpack or teleport for me?

[Hddn]

Levitate/Double Jump + Portable truck :)

[Wikzo]

Grappling hook and slowmotion is a perfect combo for me.

[Schattenmensch]

I love truckboost + portable truck. Truckboost is inconsistent as hell, but you can get some amazing speed with it ... and even if it doubles my attempts on a level: I'm here to go as fast as I can. Portable Truck is my safety net and occasional useful to get a better time if you go much faster than the trucks on the level.