The SSD is a heck of alot faster than the 160GB HDD though and costs alot more. So in comparison, the Acer is cheaper to build at the manufacturing level. Just basing on the value of the laptops, the dells is a better buy.
A 160GB HDD would be nice though.
In access time only. The 160GB drive would be one of the current single platter/160GB drives, so it would be faster in throughput for read and write for sure. The 120GB that came with my One was a Hitachi 5k320 and smokes the SSD drives in throughput.
Dell is giving a good deal on a 16GB SSD, I will agree, and it is easier to take apart to upgrade ram/ssd if so desired but you can't really upgrade the SSD, there aren't many decent priced 1.8" SSD's on the market at this time whereas with the One, if you get the HDD version, you have your choice of 2.5" SSD's, and there are starting to get plenty of those with very good performance.
Also, you can get the 6 cell with the AAO, you can't get one of those with the Dell. Nor can you go past 1GB as well.
I think Dell really dropped the ball on this one personally. Yes, Acer has a bad reputation comparison wise (though that does depend on who you talk to). Dell should have given the option for a hard disk, bigger battery, and more ram. Asus and MSI allow for 2GB modules, why is Dell limiting to 1GB?