I don't know mate, there are so many different numbers and opinions.
I'd put my money on a Bandit over a 1/4 mile, especially if it's the 650 Bandit like I have. The SV650 has all it's grunt at lower revs, but when the Bandit was upgraded to 650 it improved the low and mid range so the SV lost a fair amount of it's advantage. The Bandit undoubtedly has a higher top speed whether it's the 600 or 650. Mine can do over 150mph when there's enough clear road ahead.
I guess it depends what you like in a bike.
What I needed/wanted in a bike was:
-Comfort.
-A great sounding, high revving inline 4. (Uses the GSX engine)
-A bike that was easy on the motorway but still fun to thrash around at the weekend.
-Something that could still hang with the 600 sports bikes.
-Decent fuel economy
-Adequate power
-Easy riding with a pillion (My girlfriend is on the back every weekend)
The new bandit ticked all the boxes and even had ABS and heated grips thrown in for those painfully cold winter mornings! Not to mention a lovely sounding Yoshimura exhaust set up.
I used to ride a sports bike and the only reason I'd get an SV would be for the aggressive sporty style that turns heads, but that isn't comfortable over long distances.
-It's a V twin, I wanted an inline 4. (The V twin does sound great with a good aftermarket can on it though!)
-It doesn't have as much top end so does not overtake as swiftly while already travelling at high speed. I spend a fair amount of time on the motorway.
-It's not as stable carrying a pillion passenger.
-Worse fuel economy
-Not as much poweeeeerrrrrrr!
The argument between the SV and The Bandit has been done to death by fans of each respective bike on bike forums. I like both and would gladly have both, but The Bandit suits me more for what I need and want from a bike at the moment.
If I could afford it I'd have had a Honda Hornet or a Triumph Street Triple instead!