What if you HAD to choose between the Arcam or the Rotel?
But I dont 
The 18 is just too pedestrian for me and it can realistically really only drive small speakers with well damped bass. Still, better balanced than the A70. The Rotel lacks coherence and I dont like the bass or treble.
If you dont want a cyrus, dont like the 7001 or KI version, think the Brio has not enough power, dont like the name creek etc. I still would'nt suggest either one (A18 or 06). I'd spend a hundred quid and buy a s/h Denon PM355UK. It sounds as close to the Arcam A28 (RRP £750) as is ridiculous. Even has slightly better bass and midrange drive, only looses slight treble clarity but you only notice when comparing them back to back. Believe me, we've tried it but dont tell anyone I've said this.
Anyway, the new Arcams are not bad, have good facilities, look nice and will probably appeal to many but for musical involvement they are unfortunately not my cup of tea.