Long Term:
1. BTC
Reason: The King
2. LTC
Reason: The Queen - even though there is nothing special about it. Hopefully times will change and that money can go into better coins that have since come out.
3. Doge
Reason: No one truely knows why, but wow is all i can say
4. DRK
Reason: Truely annon and on another level of encryption.
5. Not sure. Long term its kind of hard to know atm.
Short Term:
1. EXE
Reason: similar to VERT though very low diff and cost atm.
2. INK
Reason: SHA-3 with very little attention on it atm. Good buy and good to mine.
3. HUC
Reason: You can actually play to get coins. Good concept that can later be evolved to a greater platform.
4. ANT
Reason: Its a weird coin. Try and mine for it and you will see what i mean. It almost forces you to stick around mining for days if you want a decent amount. If you put more hash power on it, you are almost cutting your own profits.
5. HVC
reason: SHA-512 and CPU only mineable coin. Has a great security structure.
Anyways, all of these can change tomorrow so you cant really just get it and hang out. You need to keep up. Its like a moving train
Good luck, follow the rules and you will get far.