I have to admit, my early (1960s) choices were largely governed by looks, meaning not only the speaker's appearance but did it have impressive looking drivers I could show off, too?
It was fortunate in a way that I took this approach, because the JBL L100 Century pair I bought in 1970 took me to the other side. Not only was the appearance a show stopper, but the drivers were significantly better than what I was used to, and that started me on a more balanced looks plus performance quest. Now I'm sort of at a point where performance is the key component, but performance being equal and price being close, then I would choose the better appearing speaker. That's personal taste, eh?
Of course in a dedicated HT, speakers should be heard and not seen, so the SAM1/SAM2 combo is fine, regardless of appearance. Recently I got some additional vertical horn-based loudspeakers, and there's no question the performance is there, no question at all. I'm hoping to pit them against the K2s this weekend. The problem will come if I try to move the K2s out (maybe sell them) because Huikyong loves the K2s, especially the way they look. She does not like the look of Array-styled horns in any configuration.
If the 1400 Array and the S4700 were anywhere close to being equally satisfying, I'd be making the smart buy to get the S4700 which has that K2-esque appeal. I could get a pair in the house. The 1400 Array is not likely to get in unless it's all the way down to the lower floor.
I know there's a tendency here to believe that an A-B comparison would solve a lot of issues, but frankly it creates more than it solves. (I'm ignoring the whole A/B/X thing, so please let's not bring that into it as well.) At least in my case, every time I compare two good JBL speakers, I tend to like both for different reasons. Anyone who's been to my house knows what that means; I end up keeping both. As Widget points out, speakers will have different strengths. Extension on a stock loudspeaker, especially at the bottom end, is easy to fix. Imaging, if it can be improved on a stock loudspeaker, can't be fixed without quite a bit of effort and modification.
Inevitably, one of us will get a 1400 Array and S4700 in the same place, listen to them in as accurate a way as anyone can in a sighted comparison, and report back on his or her findings. I will read that with interest, but also with a spoonful of skepticism, because it wasn't done in my listening environment, with my equipment, with my music, with my ears, and with my preferences/prejudices.
I really do believe it's better to "love the one you're with," but I keep bringing in these fascinating alternatives that easily convince me they're the one.