Bite Force - New bite force research, done by Animal Planet, reveals that the tiger has a much stronger bite force that the lion. The lion has a bite force of 600 lbs per square inch. The tiger bites down at 1000 lbs per square inch.
Please watch, and use this as part of your research. =)
Tigers in general have a quite sizable bite force advantage over the lion.
This is indicated in the Bite force study here:
As for bite force chart, there are many of them, most of them indicate that the tiger has a higher bite force than the Lion.
Furthermore, in recent years, the tiger has been found to have a stronger roar than the lion. The male tiger's roar includes infra-sound, working like the sperm whale of the ocean. It can stun prey items.
Paw Swipe Strength
Furthermore the strength of paw swipe of tigers is stronger, deduced from the HRR (Humerous Radius Ratio) chart which comes from a PDF file conducted by a university.
Anyway, below is the chart study on HRR of felines which talks about big cat's strength pound for pound (relatively to their size). The lower the HRR (Humerus Radius Ratio), the stronger the feline's forearms is lb for lb.
This comes with the Chart. I'll summarize what they say:
The tiger has the 2nd highest score. The lowest score of the big cats is the lions. The jaguar has the shortest humero-radial and humero-ulna ratios of the extant big cats at 0.82 and 1.01 respectively, followed by the tiger, puma and leopard. The lion's Humerus Radius Ratio ratio is approximately 0.90 and 1.04.
So from these charts, we can deduce that the World's strongest living cat in terms of forearms strength is the tiger, however the jaguar is stronger lb for lb.
And it also shows that at equal weights, the tiger is significantly stronger in terms of forearms strength compared to the lion. This means that since Tigers are usually heavier than lions, they would be much stronger in terms of forearms strength. Take note that even at the same size, the tigers score better in terms of HRR, so even at the same size, the tiger's paw swipe should be stronger than that of the lion's.
These charts are from scientific tests and research done on real live animals, unfortunately for the time being I am not able to provide more information for you because my computer has crashed just some time ago and I have lost a lot of information regarding this subject which I had acquired from research on a long time ago.
I had another chart specifically on paw swipe force of felines, which compares the paw swipe of different felines, unfortunately I am unable to relocate it now.
Tigers are better than lions in terms of IQ/EQ
Here is the chart to prove that:
http://img149.imageshack.us/img149/2526/eqandbfqchartqw2.png - link is broken 3th Jan 2013.
I also have direct accounts of Tigers hunting in streaks and seems to have higher IQ than lions in terms of hunting together.
Regarding size and weight. Remember, Tiger is the undisputed Largest cat on the planet.
In recent years, there are no Male Bengal Tiger in the wild, full grown, other than in the Sundarbans which weigh less than 200kg! Lions on the other hand, frequently weigh 185kg or less.
See also a recent lion versus tiger fight that was lost by the lion. The lion was killed with one tiger paw swipe.