I am wondering if I would be better off trying a few different patterns such as wide gape carp hooks?
That would depend on the bait/bait size used. I'll happily use Super Specialists/Super Spades from sizes 12-18 for worm, maggot, caster and, occasionally, corn. However, with bigger baits, meat, halibut pellet and boilies, I'll use a "carp" type hook. My usual for barbel is the Nash Fang Gaper in size 6-10.
Would a different style help me hook more fish?
In certain circumstances, and depending on the rig, it might.
Which do you guys use and do you think I maybe loosing out by sticking to one type/brand?
Possibly, but possibly not. It'll depend on exactly what you are doing.
Are in-turned points better than straight?
Not necessarily. However, I'm not a fan of straight points when fishing over gravel/rocks (gravel pits, Trent, Swale). I find that they blunt much more quickly.
Who makes the best/strongest patterns?
The strongest I've ever used are the
older Nash Fang range. Probably a bit stronger than is really necessary, and probably why the
newer versions use a lighter guage wire.
Other ranges that I like are the
Gardner hooks. They are a little cheaper than an awful lot of the branded carp hooks out there.