Ummm. I'd be the opposite - no regular experience of the UK maps, but what I have seen does seem to be comparable in detail level to the Irish series.
I just checked my profile above and of the 30 sites I've added, 4 (I think)weren't marked on the map. One other that I haven't got around to posting. Obviously this would be a poor sample because the bulk of the 'main' sites would have been posted before I first contributed and mine would be the lesser known, more obscure.
The stand-out feature for antiquarians is the red dot on green/brown background, that Fourwinds mentions above.
Of course, what you're used to often seems the best, doesn't it?
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