It's really hard to just say it'll sound better or good, seeing as it's very objective. Personally, I think the resonators drastically improve the sound, as they take away some of the raspiness of a free flowing exhaust. I don't really know why people remove resonators, they don't hurt flow at all. The only reason to remove the resonators is if you purposely want it as loud as possible and as raspy and droney as possible.
Breathing in and out is good enough for me.