I have an established iceberg, probably 10 ft tall, and would like a clematis to grow up it. I love clematis, and have just bought 4 more, but I can't make up my mind which will look most effective. I would like a pretty effect, with not too dense leaves to dominate. The wall they will be against gets full sun from 1pm, in my front garden.

warszawska nike - only flowers 3 months though? too red?
will goodwin - fade in the full sun? long flowering time.
multi blue - small flowers may not show up?
rhapsody - too plain?

i can rehome the others elsewhere in my garden! Any recomendations for the above grateful. I am going off online guides for the facts! thanks