kal s,
Welcome to the ML Club!
I would recommend auditioning all of your prospective (listed) amplifiers at home if possible. Listening to each amplifier carefully in your own home environment, while "trust your ears" and decide which is more to your liking. If you do a search here ML Club site 'search engine', just type in "Sunfire Cinema" and you will see all of the posts / threads, I generated asking many many questions of all of the good folks here at ML Club, to tease out just what our membership thought of "Sunfire" amplifiers...
I found out that Sunfire Cinema Grand amplifiers are a great Class 'D' amplifier. However, having said that, I wanted to look at all my options so I expanded my search and looked more at the Class 'A' amps and finially made my choice based on my what sounded good to my ears and based on my budget. IMHO, I would advise not to rush if at all possible, patience is key to sucessfully finding a great sounding awesome amplifier.
I would recommend the same to you now, but especially Roberto's most excellent advise, "Trust your ears".
Good luck on your audio quest...
It is good to have you here.
Cheers
-Robin