Here is my delema. I own the following rods:

7'8"- 3 wt. (2 pcs.)
9'- 5 wt. (5 pcs.)
9'-7 wt. (3 pcs.)

The rods I use the most for the majority of the fishing I do are the 3 wt. & 5 wt. However, the 2 pc. 3 wt. is a pain to travel with. I would like to add a lighter wt. 3 or 4 pc. model to my collection. (By the way, my wife is OK with this.)

Here are my options as I see it:

1. Get another 3 wt.
2. Get a 2 wt.
3. Get a 4 wt.

Most of my fishing is on smaller spring creeks with some time spent on larger western rivers. The way I see it adding another 3 wt. is silly. Would the 2 wt. or the 4 wt. be my best option. Any suggestions? Not really asking for specific brand recommendations or anything. Thanks.