For connecting lures to line, I use the clinch knot for mono and fluoro, and the palomar for braid (clinch knot will slip right out of braid). For attaching leaders, I use a uni-knot to uni-knot. These knots are all very simple to tie, and I can't recall ever losing a fish to a broken knot. Frayed line yes, but that's on me.

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Now the sun is just starting to climb up over the treetops,
And it's gonna be a beautiful day, that's plain to see.
But I won't be around at all, so don't even bother to call,
Cause on a day like today there's one place I gotta be:
GONE FISHIN'
Fishing with LardAlmighty on YouTube