So, with so many threads and discussions about which to get and why, I figured it might be time to make a list of pro's and cons that I'll eventually turn into an infographic. I already know which one I'll be getting (rMBP

) but I'm sure others are still undecided so....
...I'll get the ball rolling:
uMBP 2012
Pro's:
Also comes in 13"
Lower base price
Easier to access, upgrade and repair parts which
- enables you to to have an additional HDD in place of the CD
- Allows you to buy cheaper aftermarket SSD's and ram upgrades and other parts
- Cheaper, quicker battery repair
Has battery status light
Uses Mag Safe v2 (better IMO because wire fray is significantly reduced)
Has native Ethernet
Has native Firewire 800 port
Has sleep power light
Has in store option for Matt display
Refined, tried and tested design that just works.
Has brighter screen
Slightly better battery life
Con's
Even upgraded, has low maximum screen resolution for a 15" panel in this day and age. (no 1080p)
A single thunderbolt socket that doubles as DP without any other video out may be limiting.
(for more cons see below)
rMBP 2012
Pro's:
18% lighter than 15" uMBP
20% thinner than both uMBP's
More comfortable to write on, less sharper palm rest.
Has 2 Thunderbolt ports (+1 more than uMBP)
Better built I. speaker system.
Has native HDMI port
Flash SSD fastest in it's class
Has slightly better thermal characteristics than uMBP (CPU less lightly to throttle down)
Mag Safe v3 more easily disconnects
Has 15" screen with retina display
- Which has a maximum resolution of 2880 x 1800
- 178 degree viewing angle
- Improved colour gamut and contrast
- 75% reduction in glare vs glossy screened uMBP
- has "more space" mode which gives you huge amounts of desktop estate
- Possible to hack screen resolution allowing even more flexibility.
Comes with overclocked Nvidia 650m GPU with 1gb of video ram (clocked higher and with 512mb more than uMBP)
- Which means it'll perform better when connected to external display vs uMBP
Can power up to 3 external displays (before adapters/daisy chaining (as opposed to 1 on the uMBP))
Cheaper than uMBP when configured with similar specs (when assembled by apple)
Arguably better build quality (Really stiff/sturdy compared to uMBP, little flex in the screen)
The best gaming mac ever made.
Quitier
Con's
Software support (particularly Adobe CS) for retina display 1-3 months away.
No optical drive bay.
Designed for an OS that won't be released for a few weeks.
Base price is expensive
Incompatible with IR apple remote.
iFixit gives it a 1 out of 10 for repairability meaning any faults or upgrades would mean a trip to an Apple store.
Thunderbolt hardware right now is limited.
You have to buy thunderbolt adapters for legacy functionality (Ethernet, Firewire)
Noticeable UI performance issues at "more space" settings in Lion
First gen product, not for late adopters.
Niche product - probably best suited to Audio, Motion Designers and developers
New mag safe socket incompatible with the last without $10 adapter.
Limited supply, 3-5 week shipping on some models.
I hope this is fair. If anyone wants to add pro's and con's, or contest the above, please go ahead