It sounds like your friend is suggesting the bikes he'd like to ride Susie. They are old brands with some cache, but not necessarily the geometry to suit you. I'll be surprised if those brands have a model small enough to fit you too. Unless the friend has more fitting expertise than your fitter, trust your judgement (and compare against your Trek). I get quite annoyed at people who know little about small women on bikes undermining our confidence. Yes, carbon or steel will ride better than alloy but fit is paramount, and around the specs suggested by your fitter, you will find some feel more right than others (if you're lucky enough to find them to test ride). WSD generally means a shorter ett and some minor other tweaks; you can look this up on the manufacturer's website and compare with the unisex models. Thankfully most production bike manufacturers have started to walk upright and progressed past the idea of painting bikes pink, slapping a fat saddle on them and calling them WSD.

And as indy points out, compact geometry just means a sloping top tube which allows manufacturers to fit more leg lengths on fewer production sizes of bikes. Few amatuer riders would feel much difference between compact and trad frames, all else being equal, so it is a mostly aesthetic decision for those big enough to have the luxury of making a choice between bikes that otherwise fit. Personally I prefer the look of trad bikes too but I'm lucky enough to have the leg length to accommodate it.

Be aware that a '47-48 cm frame' refers to seat tube length and doesn't actually mean much any more. Compact geometry means seat tubes measure shorter than traditional, so you need to be careful about where they measure to - top of the seat tube, collar, or top tube junction? And why 'equivalent top tube' is your friend. I would be shopping with standover height and top tube length in my pocket more than seat tube length. Best advice - test ride.