What's the best version of Welsh Rarebit?

Thick toasted bread topped with a beer based cheese sauce that's sprinkled with Worcestershire sauce (fish sauce) and finished off under the grill. If you've ever been drunk, skint and staring at a empty fridge you've probably made one.

But which version is best
Whats the best version of Welsh Rarebit?
British Welsh rarebit (just the basics)
French welch complet (more sauce and an egg)
American hot brown (add bacon and turkey)
I've never had it
Does cheese on toast count
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What's the best version of Welsh Rarebit?
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