Seaward.co.uk

No doubt some of the users of this forum have come across Ethos test equipment.
Their Portable Appliance Testing range are obviously re-badged Europas and PrimeTests:
http://www.ethos-instruments.co.uk/product-select.asp?CategoryID=1&SubcategoryID=2

My question (and this is mainly to the Seaward staff who frequent here - Amy, Gary, Jim, etc.) is: if I were looking at buying a new PAT tester, what would be the pros and cons of choosing an Ethos product over a Seaward product?

I'm bumping this thread, by adding that ParkerBell seems to be another Seaward variant:

http://www.parker-bell.co.uk/item/2/pb500-easy-pat-tester-kit

So I pose my question again: Seaward, Ethos or ParkerBell?