Apple MacBook Air (13-inch, Summer 2011)

The good: The 13-inch MacBook Air has been updated with the latest Intel CPUs for better performance and battery life. Backlit keyboards make a welcome return.
The bad: The 128GB SSD drive is a lot smaller than a standard hard drive. This also starts at $100 more than the 13-inch MacBook Pro.
The bottom line: The latest version of the 13-inch MacBook Air vastly outperforms its predecessor, and can finally be called suitable for mainstream use, instead of relegated as a niche product.

As with most Apple products, the MacBook Air has moved into an annual update cycle, taking it from the original niche product version to its new perch as Apple's mainstream laptop line. With that, we've also seen a continued mainstreaming of the system's components and capabilities over the course of three generations.
Apple's new Air models hold last year's prices, the 13-inch model starts at $1,299, but while dramatically upgrading the processing power: the new second-generation Core i5 processor in the base 11-inch and 13-inch Air is a jump of two Intel generations, going directly from the older Core 2 Duo CPUs past the first generation of Core i5/i7 chips and directly to the 2011 second-generation Core i-series.

Apple MacBook Pro Fall 2011 (2.2GHz Core i7, 15-inch)

The good: Incremental updates to the CPU help keep the MacBook Pro line a step above the now-mainstream MacBook Air. The trackpad and gesture controls are still the best of any current laptop.
The bad: Unless you need an optical drive, the MacBook Air may be a better fit for most, and the Pro still lacks things we'd like to see, such as HDMI, Blu-ray, and USB 3.0.
The bottom line: A MacBook Pro is a significant investment, especially when adding in optional upgrades. Cost aside, there's not a better choice (there are, however, some close ties) for an all-around powerhouse that will work in the home, the office, and in between.

Editors' note: On October 24, 2011, Apple updated the MacBook Pro line with new CPUs, larger hard drives, and new graphics options. The upgrades were very minor, and the bulk of our review of the 15-inch MacBook Pro from earlier in 2011 still stands. We've added upgrade and contextual notes below, as well as new benchmark test results.

HP Folio 13

The good: The HP Folio 13 has everything that matters most in an ultrabook: very good battery life, an excellent backlit keyboard, all the requisite ports for mobile use, and a very comfortable feel, along with a competitive entry-level price.
The bad: The Folio 13 is no looker compared with other ultrabooks, and is a bit thicker and heavier than thin laptops such as the MacBook Air. The clickpad's just a bit too finicky for our tastes, too.
The bottom line: When it comes to Windows ultrabooks, the HP Folio 13 is the best of the bunch in terms of performance, price, and ergonomics, provided you can live with a less-than-razor-thin design. This laptop is targeted at small businesses but it's really for anyone who wants a reliable ultrabook that isn't a MacBook Air.