Hmmm, I think most people will disagree with you.
Getting the shotgun and grenade launcher early pretty much means that as long as you reserve pistol ammo for zombies, you got some serious arsenal for anything that serves as a threat.
As far as lighter goes, the assault shotgun takes out crimsons up close with one shot even on normal mode. So you don't need to worry about burning zombies, you're shotgun is the new lighter.
And as for hunters and bosses, you got the grenade launcher and magnum ammo.
I agree that Chris is actually easier to use if you know what you're doing. If you don't then Jill is probably the better choice.
1.) Chris has more health
2.) Chris' defense items prevent crimsons from happening
3.) He has a more focused inventory and thus more ammo for said inventory
4.) Rebecca can heal him at two points throughout the story
5.) He's better with a knife
6.) He runs faster when not equipped with any items
7.) The Black Tiger is a pushover with the Flamethrower
Of course there are some negatives but personally I don't find these to be negatives anyway
- Old Keys are harder to track than lockpick (but most are found very close to where you need to use them anyway)
- Chris always has to fight Plant 42 regardless of whether V-JOLT is used
- Chris has to do the proper procedure to get the original Shotgun
- Chris has a smaller inventory