You'll need to be more specific in what you're after as there are a lot of factors that can make one provider better or worse when compared to other providers.
 
A few example questions:

• Do you need a DNN-friendly host that can provide technical support for your DNN installation or just a host with reliable service? 
• Should the host provide a turnkey DNN installation option or will you manually install DNN yourself? 
• Do you require direct access to the database or are you ok with being restricted to a web-based SQL interface provided by the host? 
• Do you intend to be a reseller of DNN websites (i.e., create and host multiple sites for others)?

WebHostForLife (WH4L) is often cited for poor/erratic server performance for their basic shared hosting plan.  However, more than one person has told me that WH4L has a good private server plan with excellent performance.
 
This is a very popular topic here in the forums.  I recommend you try the following link to see related DNN forum postings on this subject:
 
   http://www.google.com/search?&q=site:http://www.dotnetnuke.com/Community/Forums+-replies+best+dnn+host

Good luck!
-mamlin
 
 

Sean,

In the spirit of full disclosure, I find it a tad shady that you're posting forum posts like this, and comments on my blog, about a company that you are the owner of the domain for.

Chris