Faucetbox
Faucetbox is micropayment website which pays bitcoins in tiny amounts e..g. payments in satoshi.Faucetbox has it’s own faucet script . This script is mostly used by faucet owners . Almost 95% faucets are created using this script . Here are pros and cons of this script – :

Pros

Easy to install – Installation does not take more then five minutes .
As I said above almost 95% faucets are created using this script. That means It has very large userbase and more users means more traffic , More then 1000 ative faucets and daily 4-5 faucets are created using faucetinabox script .
 If you create faucet using this script your faucet will be added in Faucetbox official faucet list which will drive traffic to your faucet page , as I said this script has huge userbase so it’s official faucet list will drive more traffic to your site .
The Owner of the Faucetbox always trying to add new features. He updates this script time to time .Mostly he tries to add features which protects faucet from bot attacks .
Multiple captcha support – you can easily chose which captcha you want to use e.g. Funcaptcha , G-recaptcha , Solvemedia etc.
Customizable themes – You can make your faucet design unique . If you have programming skills you can design your faucet unique . If you don’t have programming skills then you can always hire a programmer to design and I don’t think it’ll cost you much .
This script supports multiple coins e.g. Bitcoin , Dogecoin , Litecoin , Dash coin etc. It means apart from bitcoin faucet you can create multicoin faucet site .
 Download this script from here .
Cons

This is open source faucet script so mostly attacked by bots and hackers .Bot developers know how to buypass captcha validation in faucetbox script so there is a big risk to lose your coins by bot attacks .
It’s hard to know who is claiming from your faucet. Cheaters can use proxies and multipel BTC address to claim more then once and it is a hard job to catch those cheaters .
Hard to know which is bot address since bitcoin wallet address looks like a md 5 hash string so hard to judge a address that’s used by  bot