VG-based liquids will give slightly less throat hit and more vapor than PG-based liquids, in my experience.
No mini device can give you decent throat hit. If you want a decent slam from your juices, particularly lower nicotine content juices, you should consider purchasing a device with a manual switch running around 3.7 volts (i.e. 510, Screwdriver) or a high-voltage, manual device outputting approx. 5-6 volts. (i.e. Prodigy, GG).