I don't know the Ice Edge amp you are talking about, but a bit of googling suggests it is an ICE module producing 1200W. I don't know that product very well, having never seen measurements of it. But I can comment on Crown amplifiers.
There are good reasons and bad reasons to consider a Crown. Bad reasons: its noise performance is absolutely dismal. Amir did not review the amplifier you are considering, but he did review another Crown amplifier
here. Take note of Amir's comment - use it for subwoofers, don't use it for a full range speaker. The other reason to avoid are the fans. I have seen a Crown amplifier in operation, and yes the fans are audible in a quiet room, from about 2m away. The fans aren't loud enough to be heard over music, but you can definitely hear them with no music playing. If you consider purchasing a Crown, you should Google for a Noctua fan modification. I modified my Yamaha amp (same professional class type amplifier as the Crown) with Noctua fans, and I can tell you it's absolutely inaudible.
Good reasons: the amp has a lot of pro audio features. It has a clipping light to warn you if the amp is approaching its power limits. It has clipping protection - the amp will temporarily mute itself rather than clip and send potential speaker damaging harmonics. The input and output gain can be adjusted - this is a super useful feature if your amp is part of a multi-speaker system because speaker trim is essential. You can route audio from the front panel - maybe you want to mono inputs A and B, maybe you want to split input A into two outputs, or maybe you want to bridge the amplifier. And the best feature of all: it's really inexpensive.
The amp has its place. Yes, it's a bit ugly and a bit noisy. But if you mod it and hide it away and use it only for subs or woofers, you won't get a better amp for the money. After owning my Yamaha amp for a while, it makes me wish that normal hifi amps had its features.