1. Spitfire (cask)
2. Harvey's Sussex Bitter (cask)
3. Guinness (in all of its forms)
4. Bombardier (cask)
5. Stella Artois (cans, draft, whatever)
Can you get Stella in Texas? It's a decent lager, called 'wifebeater' over here because of the relatively high alcohol content. I know you can get it in some parts of the country, don't know about Tx.
The best Guinness on the planet can be found in a pub in Ireland, northeast of Dublin off the N3 past Navan, called Wilkinsons. Best. Guinness. Ever.Always. Of course, it's been over 5 years since I've been there, so I could be wrong.