@Jaymin: How does junk arm make reversal superior in gdos? It just gives u a second flip chance.
Personally, i think its up to you, but if u run a high junk arm count, poke-blowers shld be the way to go. Reversals are flippy and no-one likes flippy stuff. Moreover, they result in the same effect on average, 2 poke-blowers give u 1 pull, 2 reversals give you 1 pull on average also.
However, the thing about junk arm is that now, instead of needing 2 cards out of 4 from ur deck to use pokeblower, now u just need 2 cards out of 8, since having a junk arm in hand is as good as having a blower, hence drastically improving ur chances of getting two blowers at once.
Moreover, sometimes, blowers can be played alone to give u that extra 10 dmg needed to draw a tough ko, although it is admittedly flippy and inferior to pluspower/bat in that way, but it is workable.