I would like to begin the discussion on the subject by ... From the point of view of ...
Additionally ... It has been pointed out that... I'd just like to say ...
I think, (suppose, guess, believe, dare say) ... Personally I believe (I feel) ...
In my opinion (view) ... As I see it ... The way I see it ...
Well, my opinion is that... My view is that... This is my way of looking at it.
I don't think it would ... There's one more thing to be noted. Moreover ...
What's more ... I might as well add that... In addition ... On top of that ...
Something else I'd like to say is ... Talking of... You may be right, but all the same ...
If you ask me ... I wouldn't say that... Yes, but on the other hand ...
There's nothing like ... I don't quite see what people find in ...
I don't know anything more exciting than ... Absolutely marvellous. I like it immensely.
All things considered I must say that... I'd rather not say anything about it.
Generally speaking ... It depends.