This is a better comparison as all three are all-in-one computers.
iMac
Intel Core i3 processor, 3.06 GHz(slower than the configured HP)
4GB memory(2GB less than the configured HP 4GB less than the Dell)
500GB hard drive (half the hard drive space than the configured HP and Dell)
DVD burner (Dell has Blue-ray)
ATI Radeon Video card (slower than the configured HP and Dell)
21.5-inch, LED backlit, 1920-by-1080 (same as HP, smaller and lacking the touchscreen that the dell has)
Bluetooth and wireless
speakers
wireless keyboard and mouse
$1199.
HP Omni 200xt series (all-in-one)
Intel(R) Core(TM) i3-550 dual-core processor [3.2GHz, 512KB L2 + 4MB shared L3 cache, DMI 2.5GT/s] (faster processor)
6GB memory(more memory)
1TB hard drive(twice as much hard drive space)
DVD burner (with lightscribe)
1GB ATI Radeon (higher quality than the apple)
21.5" LED backlit, 1920x1080, display
Wireless Card
TV tuner (not included on the iMac)
Built in Speakers
Wireless keyboard and mouse.
3year care pack including house call service and 2 year parts warranty. (the iMac you priced out doesn't have apple's apple care included)
$1099.00
Again, higher specs and we still saved some money.
Dell has no all-in-one with a Intel Core i3 however one model does have a similar speed quad core AMD processor.
AMD Athlon™ II X4 610E (2.3GHz/2MB cache) (quad core)
8GB memory(twice as much memory)
1TB hard drive(twice as much hard drive space)
1024 (MB) ATI HD5470 Radeon (Much better graphics card)
23inch 1080p full HD display with backlit WLED TOUCHSCREEN (larger, better TOUCHSCREEN)
TV-Tuner (not included on the iMac)
Built in Speakers
Blu-ray Combo Drive (BD-R, DVD+/-RW), (the above iMac doesn't have Blue-ray)
Wireless keyboard and mouse
Wireless Network
1 Year Basic Service Plan plus 2 year warranty on parts (the iMac you priced out doesn't have apple's apple care included)
for.......
$1149.00
ha, saved an extra $50 and look at all that extra stuff! Blue-ray touchscreen, more memory, hard drive space and faster graphics. And I wouldn't have to buy an extra windows OS so that I could use Corel, there is another savings.