Depends on your budget and taste. Ultimately they're mostly the same, some just look nicer than others. Adidas offerings tend to run a bit narrower than Nike and have more variation in heel height, but we're still talking less than half an inch from something like the Power Perfects (0.65"), Adipowers (0.75") and Leistung (1").
Thanks - Ordered some Inov-8 Fastlift 370 BOA Weightlifting Shoes last night as I have credit on account with Wiggle. Will give them a try and I love the Boa system on my cycling shoes.