You said "he hardly breaks any tackles", I found that rather surprising, so I checked it out.
You appear to be supporting your claims that Griffin is a poor signing by making statements which are clearly untrue.
Nothing new there, I guess.

Now that made me smile!

Connor for me has teh xfactor plus cockyness too, Griffin doesn't do enough for me

I like both of them & think both of them offer something different to the team. I think Griffin has found it difficult to adapt to this season but his performances of late have been good.

For me though if I had to choose one I'd go for Connor as he has the ability to change a game. He was excellent on Friday (regardless of the 3 try's he got) and his work rate and reading of the game. The other thing I like about Connor is he is one of those players you love if he plays for you or hate if he plays against you, he gets under the skin of the opposition and something we've lacked. Think having both Connor & Carlos in the centres give our back line a much greater attacking threat.
Though I still rate Griffin but feel from what I've seen this season Connor would be in ahead of him.

It is a tough call. Griffin gives us better go forward, Connor is more skillful and seems to make things happen a little more often. Not much to separate them in defence. The trouble starting Connor at centre is that he is a very useful option to have on the bench to be able to change things up if it isn't working or if there is an injury to a back. However if we are just going to have Connor on the bench and swap him for Griffin after an hour as we have done a few times it's pointless.

Next week I think I'd be tempted to start Connor at centre and have Griffin on the bench instead of Fash to play back row, and it still gives an option to change things up if required. You get something out of both of them then, and whilst I like Fash I think Griffin carries the ball stronger.

Id stick with fash , why have a on the bench to play out of position when fash is in good form. Like you say connor makes things happen and can always be moved if injuries elsewhere