I would rather prefer the old one because it's compatible backward and offering almost all the same features.
The only advantage so far I find real interesting is the multi query function. It's way faster to send many commands at once if you don't need the output (tons of insert, update or delete statement). Save lot's of time in some case.
Otherwise both should work just great.
█ PutFile.io — Disrupting traditional file hosting. █ Signup Early and enjoy Unlimited space/bandwidth for your files hosting, Forever! █ No Ads. █ No Countdowns.