From my experience of both Humbers and Tornados in the 5.5 - 6.5m bracket I would have to say that the Tornado is a better heavy weather boat hands down!!
If the boat needs to be new and a tough hard-wearing boat I would seriously reccommend an XS-RIB. They are very competitively priced and there hulls are based on the larger 3-spray rail Tornado designs. In fact the XS-550 and XS-600 hulls are arguably better than the equivalent Tornado 5.5 and 6.0 as the Tornado have yet to be updated to the newer 3-rail hull. They are a very dry boat and give a comfortable ride. The performance is good too if you fancy a blast
. They grip well in turns and the deep-V hull warps towards the transom to a deadrise of 23 degrees so top-end is impressive also. Mine's very economical, even with the 150 Opti I average 1.2 nm/litre (includes high speed stuff and running the boat heavily loaded!!)
They are UK-built and the customer-service from Barnet Marine is second to none, I'm sure many on here will agree. They truly are a custom boat and Barnet are very happy to make any modifications that you may need, etc.
Have a look here www.xs-ribs.co.uk
& here: http://www.boat-finder.com/17858/ind...ve_menu_id=789