Here are the Ford advantages that Super Duty has over the vehicles you've selected.
 

Ford Advantage  Where you see a Ford oval in the chart below, you have a Ford advantage. Click on the oval to get an explanation.
2009 F-350 SD SUPERCAB 4X4
2009 FORD 
F-350 SD SUPERCAB 4X4
142-in. WB XL Styleside SRW

2009 RAM 2500 QUAD CAB 4X4
2009 DODGE 
RAM 2500 QUAD CAB 4X4
SLT SWB

2009 SILVERADO 2500HD CREW CAB 4WD
2009 CHEVROLET 
SILVERADO 2500HD CREW CAB 4WD
LT1 Long Box

2009 SIERRA 2500HD CREW CAB 4WD
2009 GMC 
SIERRA 2500HD CREW CAB 4WD
SLE1 Long Box

PRICE
142-in. WB XL Styleside SRW
SLT SWBLT1 Long BoxSLE1 Long Box
Base Price MSRP*
Ford Advantage
$31,430
$38,520$38,005$38,420
Comparably Equipped Price
Ford Advantage
$32,405
$45,395 + DPI$39,995$40,410
INTERIOR
142-in. WB XL Styleside SRW
SLT SWBLT1 Long BoxSLE1 Long Box
OTHER INTERIOR ITEMS
Lower Console Storage
Ford Advantage
Standard
Not AvailableOptionalOptional
PERFORMANCE
142-in. WB XL Styleside SRW
SLT SWBLT1 Long BoxSLE1 Long Box
10-Cylinder Engine
Ford Advantage
Optional
Not AvailableNot AvailableNot Available
Compression Ratio
Ford Advantage
9.8
9.69.69.6
Turning Diameter (Left)
Ford Advantage
47.5
48.955.155.1
Turning Diameter (Right)
Ford Advantage
47.5
48.955.155.1
DIMENSIONS, WEIGHTS, CAPACITIES
142-in. WB XL Styleside SRW
SLT SWBLT1 Long BoxSLE1 Long Box
Front Head Room (in.)
Ford Advantage
41.4
40.841.341.3
Front Shoulder Room (in.)
Ford Advantage
68.0
67.065.265.2
Second Row Shoulder Room (in.)
Ford Advantage
68.1
66.765.265.2
Front Hip Room (in.)
Ford Advantage
67.6
64.962.562.5
Second Row Hip Room (in.)
Ford Advantage
67.3
64.665.565.5
TOWING
Maximum Tow Capacity (lbs.)
Ford Advantage
16800
128501300013000
Maximum Payload (lbs.)
Ford Advantage
3740
255030593059
Standard GVWR (lbs.)
Ford Advantage
10200
880092009200
Maximum GVWR (lbs.)
Ford Advantage
11200
900092009200
EXTERIOR
142-in. WB XL Styleside SRW
SLT SWBLT1 Long BoxSLE1 Long Box
Manual Locking Hubs
Ford Advantage
Standard
Not AvailableNot AvailableNot Available
Access Panel
Ford Advantage
Standard
Not AvailableNot AvailableNot Available
WARRANTY
142-in. WB XL Styleside SRW
SLT SWBLT1 Long BoxSLE1 Long Box
Corrosion Perforation (Miles)
Ford Advantage
Unlimited
100000100000100000

Certain specifications, prices and equipment data have been provided under license from R. L. Polk & Co. ("Polk"). © 2009 R. L. Polk & Co.. All Rights Reserved. This information is supplied for personal use only and may not be used for any commercial purpose whatsoever without the express written consent of R. L. Polk & Co. Polk makes no guarantee or warranty, either express or implied, including without limitation any warranty of merchantability or fitness for particular purpose, with respect to the data presented here. All specifications, prices and equipment are subject to change without notice.