Of all the budget priced Tele style guitars I've bought I think that the stock G&L Tribite pups are about as good as they come. Having said that it's all a matter of personal taste. Here's what I did to my Tribute Blues Boy to get it where I wanted it to be.
1. Duncan Seth Lover neck pickup - There's a reason G&L uses these on their more expensive models. It's simply a great pickup but be aware that there may be a compatibility issue with the Tribute MFD bridge pickup and the Seth Lover that requires a ground wire adjustment.
2. Gotoh modern 6 saddle bridge - Nothing wrong with the original bridge I just like the Gotoh.
3. Graphtech Tusq XL nut - Just something I do on all of my guitars.
4. Duncan "Jerry Donahue" bridge pickup - After searching for opinions on this site I decided to go with the Jerry Donahue. Just got it installed yesterday and it's a sweet combination.
5. Elec-Trix solderless control unit - Being more than a little technically challenged and after having payed a tech $75 to install the neck pickup I decided to go this route for the bridge install. This one was a little more tricky. Since the Elec-Trix pot locations are fixed and the G&L control plate is different I had to switch over to a standard spec control plate. Also the standard plate is a little off where it meets the pick guard but close enough for my money. The other problem was that the G&L body rout was just a little shorter and I had to lengthen the cavity a bit to get the standard plate to fit. It worked out OK though since it's all hidden under the control plate. The upside is that the new control unit came with a built in switchable volume kit and seven switchable capacitor choices which did a lot to get me the exact tone I was looking for.
This stuff can be lots of fun and very rewarding and I think the Tributes are well worth putting the extra bucks into. As it stands now I'm fairly sure that I couldn't buy a better guitar for what I've got invested in this one.