Of course it's going to be a thread of bagholders. As they say: put your money where your mouth is.

Now, my personal list would be split in 2 categories:

Great mechanisms

• Peercoin (PPC) : This coin is undervalued. It combines the great idea that is PoS/PoW hybrid network security with a strong and large following. We should see it rise steadily in the long run.
• Vertcoin (VTC): Pure anti-ASIC coins are not a good thing IMO. Sure, ASIC lead to increased centralization of the hashing power, but it also means more efficient mining = less energy waste. I think that VTC's slowly scheduled scrypt difficulty increase strikes a good balance between both. You don't need to run gigantic power intensive CPU farms to mine efficiently, but you don't need to buy expensive ASIC either. Similar to YaCoin but the community its stronger => more value.
• Darkcoin (DRK): Truly anonymous cryptos are going to thrive, no question here. It's the internet after all.
• Gridcoin (GRC): Who doesn't want to help science. Probably one of the most 'justifiable' coins out there, since your hash-power doesn't go to 'waste'.

Other good stuff going on for them

• Digitalcoin (DGC) : It's yet another scrypt clone, sure, but it's one of the earliest. For some reasons it seems to be as legit as LTCs in the collective mind. Good, small and strong community of active developers (cryptoave exchange, free bank of dgc, dgc foundation). There is good potential for growth if it doesn't get drowned in the massive sea of alts.
• Maxcoin (MAX): Sure the launch was a flop and it went downhill from there... but it's still seen as THE sha3 coin. And since sha3 is the successor of sha2, it could eventually be seen as btc 2.0. Not too sure about it though .

Finally Auroracoin is probably not undervalued at the moment, but I bought some anyway. Hell it has a freaking country backing it.