I've been checking the ICO markets for some time, and i notice the same all the time. ICO on Bittrex are mostly good for DEV owners and ICO on C-CEX and Allcoin are mostly good for investors.
Example:
MARYJ was a ICO at 170 sats on C-CEX, this coin hit +7000sats a few weeks ago, meaning big returns
CND was a ICO at 180 sats on Allcoin.com, this coin hit +3000sats yesterday, meaning big returns
SWIFT was a ICO on Bittrex at 8000sats, this hit 30000 sats, what was not bad, but a lot less return then MARYJ and CND
MNE was a ICO at 5500 sats on Bittrex, it hit 10000sats but already dropped below ICO price in a few days.
MARYJ, CND are still trading above ICO price and SWIFT, MNE are trading below.
So this makes my statement very clear. If you want to make real money then you have to join those smaller exchange ICO and promote it so that it hit Bittrex as the returns are huge.
That is my opinion