agree with Gramie bj.....I made a log cabin (actually 2 more after the first) and you can sew it in one day. Now I wasn't able to do the quilting but when I did it I did SID and that took about another 2 days. LG's are one of my fav's.

take 5..can be cut out, and pieced in a day/cuple of evenings

My go-to is always 9 patch with snowballs. Fast, easy, standard sizes - 6.5 " and 2.5" squares.
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Google these words....BQ Patterns. The blocks are large and fun to put together. There are at least three versions.

Double Irish Chain

Bonnie Hunter's strip twist. sew easy and fast but the results are stunning. i always get very positive responses from people.

http://quiltville.com/striptwistpf.html

I am sooo happy to read this! I am making my 7 year old grandson a quilt using fabric with lots of transportation prints. I plan on using 10 1/2 squares alternating with blocks made from 4 1/2 sq & 2 1/2 sashing. I was worried that the 10 1/2 squares would be too large but he will want to see his trucks & planes not Grandma's piecing, KWIM? There is plenty of piecing with sashing & cornerstones but those big squares...well, that's way bigger than I have ever cut to use whole, lol.

http://wpt.org/SewingWithNancy/Video...-blocks-part-1
And there is a part 2, fast an easy and colors and it will look good.
Saw a quilt in Joannes the other day with 8" squares, 2.5" strips in square in a square and colors were beautiful.

Wickedly Easy is always my go to pattern.

I LOVE Boxed Squares! I have made it at least twelve times. It's easy and can be impressive with lots of colors. Also, the block can be any size you want. Another good traditional quilt is Log Cabin. I made an all blue one for Jim, and a tan and brown one for myself.