Hello Lyn,
I once sent an email to Barry Blyth and asked what the difference is between Adriatic Waves and Sea Power and got the following reply:
"The main difference between Sea Power and Adriatic Waves it that AW may be a bit larger flowered and in a clump, a stronger grower, though they both are good growers, Flower colour is very close."
If nobody in these forums has the two irises you wish to compare, maybe you can ask one of the nurseries. You may wish to consider Adriatic Waves. Barry Blyth listed it as one of his favourite top 10 irises in his 2012-2013 catalog.
