i'm 90kgs and run arch ex on my yeti sb-66, but i have previously run crests on my old turner flux with no problems at all. this included some afan adventures.
i am now running some bor xmd333's on my 29er which are lighter than crests (pretty much the lightest alloy 29er rims you can buy). i'm conscious that i am on the weight limit for them, but my 29er is 'wheels on the ground' xc only, so they will never have a tough life. if i'm going anywhere more hardcore, the yeti comes out to play.
flows would be overkill imho... so i would say crests if you want to keep an eye on weight, or arch ex if you just want to fit & forget.
alternatively, for £140 you can get a pair of superstar switch evo hubs (basically novatech hubs, so spares are easy to find) with pacenti tubeless 29er rims.