It is hard to say whether the Alexa looks 'better' than 5219 or an image produced on any film emulsion. That's a very subjective question after all. It is also one that depends somewhat on the format you are shooting in and whether the film will be finished digitally or photochemically, projected digitally or on film, and whether the release prints will be done from an IN, from the original camera negative or from output DI negatives. If you ask me whether the Alexa can produce a more pleasing image (that is more pleasing to my eye) than film in a 1:85 format, I would say unequivocally yes! If you were to compare a print from an original anamorphic negative (a slower emulsion) with an equivalent wide screen image extracted from the Alexa, then I would say that, under optimum circumstances, the film image might be more 'pleasing'. But if you were to pose this same question whilst insisting that the the scene be lit by a single candle, I would say that the Alexa would win out every time. If you were to shoot using the Alexa and anamorphic lenses then the Alexa might win out over film in every circumstance including bright exterior sunlight.
My preference is to shoot spherical wide screen rather than true anamorphic. Judging the comparison between a wide screen extracted image from the Alexa and a Super 35mm film negative (both being viewed in a digital format) I would give the edge to that from the Alexa. However, the Alexa has a sensitivity of 800ASA and can be used at 1600ASA with only a slight noise increase. That has to be a factor in any comparison.
I don't believe Kodak has any real stake in the digital market. If they really can produce an emulsion rated at 2000 ASA, which is truly comparable to today's 500 ASA stock, then I think they should do it very quickly! The Alexa can produce an image equivalent to one shot on a 500 ASA film stock, but at a rating of 1600 ASA and it can do it now. It seems to me that film is limited by it's inherent physical properties but also, and more tellingly, it is limited in it's practicality as a business model.