Be sure to ask for reasons, not just conclusions.
Here are a couple possibilities:
1. Darkcoin. The leader in anonymous transactions which is a big deal in crypto; limited coin supply, nice price growth but still low compared to its ultimate potential. Strong dev team.
2. Piggycoin. This coin is marketed for teaching kids about crypto, and the market cap is so small that even modest success in that goal will necessarily drive the price way up. Plus it's just plain fun to give kids some PIG in their online Piggybanks. Dev has been very active and there are some good projects to fulfill the goal of making this a coin for kids. (See
http://www.piggy-coin.com/)
3. Pesetacoin. Another undervalued coin, oriented for the Spanish market (think "pesos"). They are developing merchant support and that should drive success going forward.
4. Blackcoin. Strong dev team that has led the way for other alts in terms of new ideas. Struggled a bit of late, but it's the kind of coin that has a good chance of surging if and when they come up with another great idea.
5. Rupayacoin. Another sleeper coin (think "rupees") - very cheap and has struggled to find its footing. But if it does you could make a killing.
My 2 satoshis,
ebliever
