841ND + DIR615
RT-N13U
1043ND
Overall, if you're using stock firmware, RT-N13U has more features. Print server, its QOS and the built-in download master. Just depends on your budget and whether you need those features. TP-link routers has less features to play with. Btw, you should do research whether 1043ND supports printer sharing on default firmware. I'm not quite sure after a few googling. It's a capable router I would say, even better if flashed with DDWRT or something similar. Btw, 1043ND has gigabit. Whether you need it or not, it's up to your decision. If I'm not wrong, 1043ND is still cheaper than the N13U.

Summary
i) Need built in download master for FTP/HTTP/BT and Asus QoS feature? Get N13U
ii) Best bang for buck?? 841ND+DIR615. I'm using this setup. So far so good. Simple setup too.
iii) If you need Gigabit, 1043ND should be very fun to play with and it's priced between i) and ii) But you must check whether its stock firmware allows you to do printer sharing (I think it should, else the USB port is quite useless  )

Btw, something to share~~

Quite insane mod done on 1043ND... RAM and USB Hub