It is a better deal for the MBP at a $100 price differential.
If you prefer a bigger screen and the keyboard (backlit), go for it!
If you are looking for portability though, the 13.3" glossy is great and the (new!) keyboard is much easier (for me) to type on. I have owned a PowerBook (same keyboard) before as well as two MacBooks with the new style keyboard and I much prefer the "chicklet" style keys.
If you want to save a little bit more ($200), then get this one:
Refurbished MacBook Pro, 15-inch, 2.16GHz Intel Core 2 Duo
15.4-inch widescreen display (1440x900 resolution)
1GB (single SODIMM) 667MHz DDR2 SDRAM
120GB 5400-rpm Serial ATA hard drive
Slot-load 6x SuperDrive (DVD±RW/CD-RW)
ATI Mobility Radeon X1600 with 128MB GDDR3 memory
Built-in iSight Camera
Front Row and Apple Remote
You may receive glossy or non glossy screen
$1709
That is still a very capable machine and isn't that much slower than 2.2 (vs 2.16). Just bump up the memory (very cheap to do, to 2 or 3GB) and it should last a while.