Crowd-Sourcing My Phone Dilemma

I'm preparing -- it doesn't really matter why -- to abandon my cable company's VOIP phone service.

I haven't decided what to go to yet, though. The options (that I have thought of so far) include transferring my longstanding land line number to:

• Vonage
  
• Skype
  
• MagicJack
  
• A cell phone
  

Suggestions, recommendations, don't-even-think-about-its welcome.

[Update: Settled on cell. Port in progress! - TLK]