Obviously the numbers are different, and if that's all you look at then yes, the resulting abilities of the characters will also be different. (and FWIW you've given a pretty extreme pair of stat sets - 18-18-14-14-14-14 vs. 14-10-9-9-9-9 (filling in values not stated, using what you said as guidelines) - giving an average of 15.67 vs. 10.00 for the two characters. That's a huge difference, and IME extremely unlikely to happen within the same party. But, it's what you've got, so let's proceed.
Outright going to be better? Not necessarily. Are the odds in Tok's favour? Certainly. But you won't know the actual outcome - whether, say, Tik rolls into the hall of fame while Tok lies forgotten in an unmarked grave somewhere - until the game gets played out.
Lan-"stats aren't everything"-efan
I'm just using stats from the last game I played where we rolled for stats. I don't remember exact numbers - I think my wife's low number was a 6 but not sure that really matters all that much.
From a metagame standpoint Tok is numerically superior to Tik in every way. No one has explained why that is a good thing other than that it's what they prefer. I prefer more even footing.
We like to come up with characters and detailed backgrounds (often with "prequel" stories) to introduce characters long before the campaign starts. Random results are not only inherently unfair, they also make the preplanning and detailed back stories more difficult.