Hashing algorithm has nothing to do with transaction confirmation time. Once you send a transaction and the other sides client sees it, it is almost as good as being confirmed on the blockchain.
I dont think you should worry about the security aspects of those algorithms. If any of them is be compromised you would have much more important things to worry about than your coins.
Confirmation times doesn't matter much.
Quark is by far the fastest coin in terms of tx time and it doesn't help its price.