This is a difficult question for anyone without experience of these machines to answer satisfactorily for you.
I dont (have experience with either) however I might approach it in this way.
I dont like domestic machines with electronics or "touch pad" (rather than simple toggle switch) operation so if one if them is a touch pad machine then that is one I would consider not keeping.
I dont like thermoblock machines so if one of them is a thermoblock machine, ditto to the above (ie I would not keep it).
I dont like machines with crema enhancing devices in their group handles...so ditto...
I dont like machines with flimsy, light (as in little weight) group handles so...ditto
I dont like machines with steamer on LHS...so...ditto...
I dont like machines with short steam pipes that only swivel around in a circular direction and therefore give little proper access for your milk jug so...ditto...
I dont like machines with plastic in the body (other than say the drip tray) so...ditto... and lastly,
I do not like machines that carry electrical appliance brand names instead of coffee machine brand names and therefore it might be said I may be a little biased.
In any case this gives you an idea of what this respondent doesnt like in a domestic espresso coffee machine. These are legitimate dislikes and are based on my idea that the machine needs to be simple, user friendly, with little to go wrong or break over time, and that you should be able to get repaired for many many years to come without problem. Will this be the case with "appliance brand" machines?
Ultimately and in an ideal situation the absolute best thing would be to get a simple demo of each and then you would also be able to see what they are capable of producing.
I realise this is not what was asked but another alternative is to try & get your money back on both and go visit someone specialising in domestic coffee machines. As you mention that budget is a problem, let me assure you that you CAN buy a simple pump driven domestic, with proper boiler rather than a thermoblock, with no add on gismos to break down, that works well in both espresso and steaming departments, and is solidly built, for around $550.00. Mate it up to a "matching" Lux grinder for around $265 and whalla, for $815.00 you are on your way with a machine that works well, will last years, and will be repairable for years. The world does not only revolve around the two more expensive domestic machines you mentioned...
Hope this helps.