They're all great if you want to order parts from the UK. None are good if you want to get parts from the US. LR Owner International seems to be the best overall for having lots of varied content. I used to support LR Monthly when they had a US edition but stopped when they gave that up. LR Enthusiast mercifully went out of business and I haven't seen a copy of LR World in a while. Oh, and the US-based LR Lifestyle went bust too, but that might have been one of the least essential pubs ever. Kind of like a Napa Valley Camber of Commerce newsletter with Range Rovers in it.