Ive found them all a much of a muchness,
I now get my holders from paragon - a lot cheaper than "window cleaning companies - they also do some quite thick pads like the Unger green fluffy ones - haven't used them yet
but unless its a regular internal I always mop over with a thick pad them use a microfibre cloth to dry and finally use a damp smooth pad (white vinegar) to finish
Darran