I would rather see a 90% turnout with 60% voting for someone I didn't like than a 60 % turnout with 60% voting for someone I liked.
Think about it! In the first case 54% of the eligible voters elected the winner. This is democracy. A government by "the people".
In the second case 36% of the eligible voters elected the winner. This is oligarchy, government of the few.
Always vote! You may not like your choice, but if you don't vote for "the lesser of two evils" you may get "the greater of two evils".
Also never ever believe polls. Did they ask you who you would vote for? Chances are better than 90% that they did not even call you.
Never respond to polls. If you don't respond you increase the uncertainty of polls. By increasing the uncertainty you will decrease the uncertainty of people who might not vote because their candidate was "down" in the polls.
Polls have another bad effect on democracy. Candidates may change their messages to align with the polls. If candidates ignored polls, they would work harder to convince you of their solutions. if candidates adjusted their messages to match the polls, they might give you solutions which they have no intention of implementing.
Finally, my favorite mantra that I have yet to see elsewhere:
The only way you throw you vote away
Is to stay away!