I think a better approach instead of voting on features is:

- Have lots of people declare that they're tired of all the crapcoins and they're going to support an actual innovative coin.

- Solicit proposals for new coins over a two week period.  This allows devs to have new features beyond those already known.

- After the two weeks are over, people get one week to vote for the proposal they like best.  Limit voters to those with accounts of a certain age and activity to avoid fraud.

- Everyone agrees to support the winning coin even if they voted for a different proposal.

- Give the developer a month or so to actually develop the coin.

- Launch, profit, etc.

Oh, and a strict no-existing-coins rule for the proposals.  Otherwise you'll end up with "camps" from existing coins arguing why theirs is the best.