The Palomar Knot is easy to tie correctly, and consistently the strongest knot known to hold terminal tackle.  I prefer this knot for attaching spinner baits or any other hard bait to my line.  I have also found that this knot is a little difficult to do when using large hard baits.
1. Double about 4" of line and pass the loop     through the eye of fishing hook.
2. Let the fishing hook hang loose, and tie an     overhand knot in the doubled line.  Avoid twisting the lines and do NOT tighten the knot.
3. Pull the loop end of the line far enough to pass     it over the hook, swivel or lure. Make sure the loop passes completely over the attachment.
4. Pull both the tag end and the standing line until     the knot is tightened. Clip off the tag end of the     fishing line.

 

 

The Uni-knot is one of my favorite knots.   I get better knot performance with a smooth elongated structure.   This knot can also be used to join two lines together.
1. Pass a 10 to 15" length of line through the eye twice and     form a loop. For even greater knot strength, double the     line if the eye will allow.
2. Wrapping through the loop and around the standing      line, make 8 to 10 wraps.
3. Pull on the tag end.  Look to see that the wraps form a     neat orderly knot.  Don't forget to wet the line before     pulling down the knot.
4. Tighten the knot and trim the tag end.  I have found that      leaving the tag end trimmed to 1/8" is best.

 

 

OK, here is the one I have used for years.  The Trilene knot very similar to the Uni-knot but is much easier to tie.  This is the knot I use for connecting to any hook or jig.  Snaps, swivels, & split rings can all be tied to this knot very quickly.
1.  Run end of line through eye of hook or lure      and double back through the eye a second      time.
2.  Loop around standing part of line 5 or 6 times.      Thread tag end between the eye and the coils      as shown.
3.  Tighten knot with a steady, even motion      without hesitation. Don't forget to wet the line      before pulling down the knot.  Trim tag end      leaving at least 1/8 inch.