I use an OVH EG-16 in BHS. It's a very solid machine and while it does have some problems with seeding, not being located in Europe, I'm having no issues holding a very nice ratio (5+) on a site like PTP without the use of freeleech.
I can definitely recommend the EG-16 in both BHS and RBX (and most OVH servers for that matter, with the exception of the game servers and the C2750 12TB machine they offer)
I've been on a lot of other servers and tuned a lot of servers for other people. Two of my recommended servers for people on a budget:
Hetzner - e3-1245 2x3tb 16gb ram with an intel nic
- Amazing value. Good hardware, tunes well and the intel nics outperform the broadcoms and realteks that all their other servers push
Online.net - dedibox xc 2016 SSD
- Great on a budget if you need to build buffer fast. The processor isn't strong, but it makes up for it with a zippy little ssd that can keep up with the 2.5gbit backbone quiet nicely
That said I do not recommend the HDD version of the XC 2016. It has severe IO issues and will struggle to keep up with any torrents that are too big (16+gb) or once you start seeding several torrents at once. It can be a good box if you are willing to work with its limitations, but for the average user who just want something that works I find it tedious to work with.
OneProvider might be cheap but has some of the worst support I have had the mispleasure of dealing with. You get what you pay for, I suppose. It might be okay if you never had to contact support, but I find myself dealing with their support more than any other provider due to failing hardware.