Quick TM or charge TM ?

LOL... I value more is better...

To change a charge move you may need more than one charge TM, whereas a fast move can be changed with only one fast TM. This suggests to me that demand for charge TM's is greater while the supply of each is the same, which means charge TMs are more valuable.

I would say its fairly even overall.

But yes quick move is the more safer option obviously as you cant get the wrong roll, meaning charge TM's will be the one we need most of in the long run most likely.

but overall gameplay impact may come more from the charge move, or both equally...depending on the move/pokemon however. Some quick attacks are just spammed with the idea of gaining energy to blast the power charge move such as solar beam.

To get that perfect moveset...both moves have to be right, (depending if you need to roll both or already have one ideal move) so in some ways they are both as important as each other, it just depends on what you need. Its just riskier to roll the charge move with the way it works.

Depends on how many crappy move originally.

I've used two charge TMs and in both cases I knew I'd get a move that I'd be okay with.

I used one on a Hyper Beam Dragonite having a slight preference for Hurricane, since I already had a Dragonite with DT/O, but I got Outrage and I'm fine with that.

I used another on a Fire Blast Tyranitar. Again, I had a slight preference for Crunch but I wasn't at all disappointed when it rolled Stone Edge.

I only seem to be getting fast TM's, so right now I value charge TM's far higher. But I do like the fact that with fast TM's you know what you are gonna get.