First of all, I think the list is great, and is eerily similar to a list I just came up with a few weeks ago:
In other words, I like it!
Now for the drama:
My double twin-linked auto-cannon dread is 120 points.
Your auto/las pred is 135 points.
Dread gets 4 shots at BS4 with re-roll misses
Pred gets 3 shots at BS4, no re-rolls.
Yes the pred has +2 armor penetration on two of it's shots but dread will land more shots.
Auto/las preds are still good, I just prefer rifle dreads.
You forget that Autocannons are TWO shots at S7 AP4, not one. The difference between the Predator turret's Autocannon and your Dreadnought's Autocannon is the Dread's is Twin Linked. The Auto/Las predator is INSANE for its points, and can easily pick apart higher-armored targets where the Dread will have trouble.
A redeemer is not better than a crusader but a crusader isn't better either. Both choices are good.
Simply wrong here. There's a reason the Crusader is the only Land Raider brought to tournaments, and that's because the Redeemer (and regular one) are big steamy piles of crap. You won't EVER fire both flame templates off of the Redeemer in the same turn unless your opponent is just being dumb, and it has to get to the front lines to use those Marine-killing flamers, meaning it is even more of a target than the other LR's. Not to mention the fact that if you disembark from your Redeemer, you typically won't be able to use your flame templates because you'll have to place it over your own models which is illegal.
Bikes are slower than speeders, only get one gun and can't jump over things.
Bikes are slower than speeders??? WHAT? Both move up to 24" and can fire after moving 12".... (and bikes can fire everything after moving 12")
As for "get only one gun and can't jump over things", they cost HALF as much and ignore difficult terrain (just roll dangerous). Attack Bikes cost 50 points base and come with a Twin-Linked Bolter AND a Heavy Bolter, AND it's T5 with 2 wounds. Statistically it does better than a Speeder because it can shrug off more small-arms fire.
Jumpers work better in pure jumper lists, with mech lists you want as many vehicles as possible to give your opponent more targets than they have AT guns.
First part is not true, second part is. Yes, mech needs many vehicles, but Jumpers do great in multiple different lists. You should try a mixed Mech/Jumper list, they do quite well (see my batrep between Salamanders and Blood Angels).
LC with FC are not bad, they aren't amazing either. When they aren't charging TH/SS are much better.
As stated by the poster before you, yes I5 S5 Power Weapons that re-roll the to-wound roll are often better than TH/SS Termies. They can deal with everything a TH/SS Termie can (offensively), and if you're using them for armor busting, you're doing it wrong.
Please play a few games against someone who understands how to use blocking tactics.
Please calm down and don't assume that every game, on turn one, that the Land Raider will be screwed.
I don't know how many games I've played of 40k 5th with my 1 Land Raider Crusader where the ONLY damage it takes (even against armies with tons of melta/heavy weaponry) is the friggin immobilization that happens when I try to be ballsy and move it over difficult terrain.
You seem very angry and biased towards certain units though your info seems to be slightly off. Not picking a fight, just saying that even after the thousands of games of 5th and hundreds I've played with the new codex, I'm still learning things here and there. Try playtesting some of the stuff above for a few games to maybe have a more well-rounded opinion.