I disagree. . . .
At low levels, manipulating the modifiers to your advantage is the key.
"You shot that man in the back!"
"His back was to me."
At low levels, you take the high ground, roll the rocks, take the flank, lure them into mud, wait for joe to stun them, sneak up on them when they're sleeping. . .. then go for it.
At super high levels, you step in the mud, allow them the flank, and still go for it.
The rest of the time is in between somewhere.
Only people who enjoy character generation leave anything up to the dice they can possibly front load to their advantage.
I find it amusing when my character, due to long survival, is 50% or 100% higher level than the group combat monster on character #3 or #4, and they say "Your character is so powerful, why is he such a wussy arse coward?". . .the answer being that he's high level because he doesn't live for combat, avoids it when he can, and makes sure to win when he can't. . .using whatever wussy arse coward means are handy. Thus surviving, and going up levels, rather than heroically dying.