If you are a relatively new vapor, I recommend an electronic regulated mod for its built-in protective circuitry against hard shorts. It will protect the battery, the mod, and you against short circuits should they occur. It will regulate the battery's voltage output so the vapor production remains consistant, and you can adjust the voltage to each specific flavor that you use for it's sweet spot.
A mechanical mod has no built-in protection - its just the battery and you. You can add a vape safe fuse or a Kick onto the bottom of your battery for some protection. If you go with a mechanical and a Kick, you might as well get the regulated mod in the first place. A mechanical mod's vapor production depends upon the voltage of a battery. It's best performance will be with a fully charged battery and will gradually decline as the battery drains. You also will not be able to fine tune the voltage for a juice's sweet spot.
If it was me, I'd get the MVP. It's small enough for both home and to use out of the house (pocket-friendly), has incredible battery life between charges, can be used while it charges, and their is no need to buy multiple batteries and a charger.