Those are not dual core CPUs and you may be displeased with the performance.
The remaining two are WILDLY different beasts. I own a similar dv6910us and would buy it again. It's not a gamer's laptop so don't delude yourself that you'll be playing Crysis on these. But the Hp dv6910us runs well and the Lightscribe feature is something I use. The wifi works well too.
For me I'd look again at the HP model. Be sure to extend the warranty for the time period that makes sense to you. Some forget that laptop repairs cost about as much as the entire laptop, even for what some think should be minor.
Well first off I'm a senior in High School going to college next year so I'm looking for a computer to buy. My price cap is $1,100 and I'm looking for something that looks nice and performs great. Right now I'm stuck between 4 different laptops:
1.HP - Pavilion Tablet PC - http://www.bestbuy.com/site/olspage.jsp?skuId=8893058&type=product&id=1211587729489
2. HP - Pavilion Special Edition - http://www.bestbuy.com/site/olspage.jsp?skuId=8893094&type=product&id=1211587729687
3. Gateway Arctic Bloom - http://www.bestbuy.com/site/olspage.jsp?skuId=8790837&type=product&id=1205537513389
4. Toshiba - Satellite Laptop - http://www.bestbuy.com/site/olspage.jsp?skuId=9036027&type=product&id=1218011395791
I'm leaning towards the HP Tablet PC because I like to mess around with Photoshop and having a tablet will be easier instead of a mouse. But also I'm looking for something that can play games as well, nothing on the extreme but like Counter-Strike: Source or Team Fortress 2, nothing like Crysis.