I'm currently tank 2.75'ish in IB and so far I've only seen one drop go to the top guy. The top 3 drops are really rare too, maybe 3 in total. The bottom half on the other hand is getting 1-3 drops every match. Hell, if the game had not constantly thrown me into backfills that are about to end - and where I have no reasonable chance of gathering points for a top position - I'd probably still be loot'less, because that's where I've had all my loot. And -blam!- Shaxx and his class item packages.