Best Template Engine

I wanted to ask what template engine ( if any ) you guys use for CI.

I'm looking for something that can help me with :

1. Change <?php .....     to     {}

2. Dynamic div content change - change content to div's without page reload

3. Multi - layers ...

Website : www.my-web-projects.com

CodeIgniter have the basic template parser (recommended is using pure PHP), but you can use any other PHP template engine, the most popular are Smarty and Twig.