user3029: In terms of updating the codebase, bug response, new features etc.
Who are the front runners that at least update at least once or twice a month? 
If an altcoin that doesn't even update their codebase or bug responses within a month should not qualify.

user18196: Coin Gecko (https://www.coingecko.com/en) has all sorts of metrics on what coins have active communities/developers. I'm not sure how exactly they measure each of these things, but it may be what you're looking for. 

3029: <p>In terms of updating the codebase, bug response, new features etc.</p>

<p>Who are the front runners that at least update at least once or twice a month? </p>

<p>If an altcoin that doesn't even update their codebase or bug responses within a month should not qualify.</p>
 18196: <p>Coin Gecko (<a href="https://www.coingecko.com/en" rel="nofollow">https://www.coingecko.com/en</a>) has all sorts of metrics on what coins have active communities/developers. I'm not sure how exactly they measure each of these things, but it may be what you're looking for. </p>
