speakers for creek 5350se?

I have a creek 5350se and currently Vandersteen 1c's. I can get the 2ce signatures or I could upgrade to something else. Suggestions? I like classical including symphonic and rock and a little bit of everything else. Rest of system - rotel 971cd, well tempered record player with sumiko bps and audioquest cabling (thinking of switching to kimber kable). Thank you for your suggestions.