With those Rotels, I would suggest the Dali would be a great match. The Dalis are sensual and rich. The Thiels may well sound dry with Rotel IMO. The JM Lab are also very phase coherent and have already gotten very good press in Europe. I auditined the S8e a couple times and it is excellent but not a speaker for rocking out - it's more acoustic-music oriented but for you that may be perfect.
Glad to see you pick appropriately sized speakers for your room. That is an important detail that many people overlook and then they mess around with room treatments and amplifiers to try to achieve good tonal balance, without ever really getting there. All the speakers you have on your list will be excellent - they'll just have different flavors of sound. Experimentation is what you need now. Good luck! Arthur
Glad to see you pick appropriately sized speakers for your room. That is an important detail that many people overlook and then they mess around with room treatments and amplifiers to try to achieve good tonal balance, without ever really getting there. All the speakers you have on your list will be excellent - they'll just have different flavors of sound. Experimentation is what you need now. Good luck! Arthur